./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/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_1-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:27:01,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:27:01,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:27:01,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:27:01,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:27:01,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:27:01,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:27:01,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:27:01,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:27:01,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:27:01,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:27:01,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:27:01,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:27:01,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:27:01,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:27:01,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:27:01,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:27:01,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:27:01,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:27:01,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:27:01,461 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:27:01,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:27:01,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:27:01,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:27:01,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:27:01,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:27:01,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:27:01,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:27:01,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:27:01,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:27:01,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:27:01,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:27:01,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:27:01,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:27:01,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:27:01,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:27:01,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:27:01,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:27:01,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:27:01,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:27:01,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:27:01,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:27:01,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:27:01,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:27:01,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:27:01,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:27:01,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:27:01,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:27:01,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:27:01,521 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:27:01,521 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:27:01,521 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:27:01,522 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:27:01,522 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:27:01,523 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:27:01,523 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:27:01,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:27:01,523 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:27:01,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:27:01,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:27:01,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:27:01,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:27:01,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:27:01,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:27:01,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:27:01,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:27:01,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:27:01,526 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:27:01,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:27:01,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:27:01,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:27:01,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:27:01,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:27:01,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:27:01,529 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:27:01,529 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2022-07-13 03:27:01,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:27:01,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:27:01,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:27:01,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:27:01,811 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:27:01,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-07-13 03:27:01,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa901197a/9bce6759666c472daed8cc1c3075b128/FLAGf7b698d43 [2022-07-13 03:27:02,382 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:27:02,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-07-13 03:27:02,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa901197a/9bce6759666c472daed8cc1c3075b128/FLAGf7b698d43 [2022-07-13 03:27:02,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa901197a/9bce6759666c472daed8cc1c3075b128 [2022-07-13 03:27:02,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:27:02,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:27:02,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:27:02,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:27:02,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:27:02,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:27:02" (1/1) ... [2022-07-13 03:27:02,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11027469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:02, skipping insertion in model container [2022-07-13 03:27:02,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:27:02" (1/1) ... [2022-07-13 03:27:02,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:27:02,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:27:02,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-07-13 03:27:02,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:27:02,970 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:27:02,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-07-13 03:27:03,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:27:03,025 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:27:03,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03 WrapperNode [2022-07-13 03:27:03,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:27:03,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:27:03,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:27:03,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:27:03,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,101 INFO L137 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 14, calls inlined = 12, statements flattened = 433 [2022-07-13 03:27:03,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:27:03,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:27:03,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:27:03,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:27:03,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:27:03,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:27:03,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:27:03,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:27:03,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (1/1) ... [2022-07-13 03:27:03,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:03,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:03,204 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) [2022-07-13 03:27:03,210 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 [2022-07-13 03:27:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:27:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:27:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:27:03,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:27:03,304 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:27:03,305 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:27:03,801 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:27:03,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:27:03,809 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-13 03:27:03,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:27:03 BoogieIcfgContainer [2022-07-13 03:27:03,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:27:03,813 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:27:03,813 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:27:03,819 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:27:03,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:27:03,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:27:02" (1/3) ... [2022-07-13 03:27:03,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49cc9e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:27:03, skipping insertion in model container [2022-07-13 03:27:03,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:27:03,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:27:03" (2/3) ... [2022-07-13 03:27:03,822 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49cc9e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:27:03, skipping insertion in model container [2022-07-13 03:27:03,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:27:03,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:27:03" (3/3) ... [2022-07-13 03:27:03,824 INFO L354 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2022-07-13 03:27:03,881 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:27:03,881 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:27:03,881 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:27:03,881 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:27:03,881 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:27:03,881 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:27:03,881 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:27:03,881 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:27:03,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 145 states, 144 states have (on average 1.7430555555555556) internal successors, (251), 144 states have internal predecessors, (251), 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) [2022-07-13 03:27:03,912 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-07-13 03:27:03,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:27:03,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:27:03,918 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:27:03,918 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:27:03,918 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:27:03,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 145 states, 144 states have (on average 1.7430555555555556) internal successors, (251), 144 states have internal predecessors, (251), 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) [2022-07-13 03:27:03,928 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-07-13 03:27:03,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:27:03,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:27:03,929 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:27:03,929 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:27:03,934 INFO L752 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#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_add~0#1, main_~zero~0#1, main_~sa~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~tmp___2~0#1, main_~tmp___3~0#1, main_~tmp___4~0#1, main_~tmp___5~0#1, main_~tmp___6~0#1, main_~tmp___7~0#1, main_~tmp___8~0#1, main_~tmp___9~0#1, main_~__retres23~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_add~0#1;havoc main_~zero~0#1;havoc main_~sa~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~tmp___2~0#1;havoc main_~tmp___3~0#1;havoc main_~tmp___4~0#1;havoc main_~tmp___5~0#1;havoc main_~tmp___6~0#1;havoc main_~tmp___7~0#1;havoc main_~tmp___8~0#1;havoc main_~tmp___9~0#1;havoc main_~__retres23~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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; 91#L29true assume !(0 == base2flt_~m#1 % 4294967296); 126#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 58#L57-2true [2022-07-13 03:27:03,935 INFO L754 eck$LassoCheckResult]: Loop: 58#L57-2true assume !false; 39#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 108#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 58#L57-2true [2022-07-13 03:27:03,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:03,941 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-07-13 03:27:03,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:03,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598170007] [2022-07-13 03:27:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:03,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:27:04,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:27:04,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598170007] [2022-07-13 03:27:04,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598170007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:27:04,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:27:04,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:27:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120847940] [2022-07-13 03:27:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:27:04,195 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:27:04,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-07-13 03:27:04,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:04,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519928190] [2022-07-13 03:27:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:04,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:04,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:04,343 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:04,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:04,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:04,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:04,344 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:27:04,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:04,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:04,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2022-07-13 03:27:04,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:04,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:04,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:04,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:04,487 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:04,488 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:27:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:04,492 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) [2022-07-13 03:27:04,493 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 [2022-07-13 03:27:04,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:04,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:04,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:27:04,525 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:27:04,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:04,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:04,532 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) [2022-07-13 03:27:04,533 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 [2022-07-13 03:27:04,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:04,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:04,567 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 [2022-07-13 03:27:04,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:04,569 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) [2022-07-13 03:27:04,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:27:04,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:04,587 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 [2022-07-13 03:27:04,627 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:27:04,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:04,635 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:04,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:04,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:04,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:04,635 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:27:04,635 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:04,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:04,635 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2022-07-13 03:27:04,635 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:04,635 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:04,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:04,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:04,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:04,725 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:27:04,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:04,728 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) [2022-07-13 03:27:04,736 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 [2022-07-13 03:27:04,737 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 [2022-07-13 03:27:04,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:04,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:04,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:04,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:04,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:04,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:04,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:04,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:27:04,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:04,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:04,800 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) [2022-07-13 03:27:04,806 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 [2022-07-13 03:27:04,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:04,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:04,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:04,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:04,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:04,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:04,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:04,818 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 [2022-07-13 03:27:04,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:27:04,841 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:27:04,841 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:27:04,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:04,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:04,848 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) [2022-07-13 03:27:04,850 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 [2022-07-13 03:27:04,880 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:27:04,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:27:04,880 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:27:04,881 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-07-13 03:27:04,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:04,908 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:27:04,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:04,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:27:04,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:04,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:27:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:04,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:27:05,015 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:27:05,017 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 145 states, 144 states have (on average 1.7430555555555556) internal successors, (251), 144 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:05,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 145 states, 144 states have (on average 1.7430555555555556) internal successors, (251), 144 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 443 states and 758 transitions. Complement of second has 6 states. [2022-07-13 03:27:05,146 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 [2022-07-13 03:27:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 500 transitions. [2022-07-13 03:27:05,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 500 transitions. Stem has 4 letters. Loop has 3 letters. [2022-07-13 03:27:05,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:05,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 500 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-13 03:27:05,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:05,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 500 transitions. Stem has 4 letters. Loop has 6 letters. [2022-07-13 03:27:05,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:05,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 443 states and 758 transitions. [2022-07-13 03:27:05,166 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-07-13 03:27:05,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 443 states to 89 states and 146 transitions. [2022-07-13 03:27:05,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-07-13 03:27:05,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2022-07-13 03:27:05,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 146 transitions. [2022-07-13 03:27:05,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:27:05,172 INFO L369 hiAutomatonCegarLoop]: Abstraction has 89 states and 146 transitions. [2022-07-13 03:27:05,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 146 transitions. [2022-07-13 03:27:05,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 70. [2022-07-13 03:27:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 69 states have internal predecessors, (118), 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) [2022-07-13 03:27:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 118 transitions. [2022-07-13 03:27:05,200 INFO L392 hiAutomatonCegarLoop]: Abstraction has 70 states and 118 transitions. [2022-07-13 03:27:05,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:27:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:27:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:27:05,204 INFO L87 Difference]: Start difference. First operand 70 states and 118 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:27:05,333 INFO L93 Difference]: Finished difference Result 39 states and 57 transitions. [2022-07-13 03:27:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:27:05,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 57 transitions. [2022-07-13 03:27:05,343 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-07-13 03:27:05,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 57 transitions. [2022-07-13 03:27:05,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-07-13 03:27:05,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-07-13 03:27:05,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 57 transitions. [2022-07-13 03:27:05,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:27:05,345 INFO L369 hiAutomatonCegarLoop]: Abstraction has 39 states and 57 transitions. [2022-07-13 03:27:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 57 transitions. [2022-07-13 03:27:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2022-07-13 03:27:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:05,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2022-07-13 03:27:05,347 INFO L392 hiAutomatonCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-07-13 03:27:05,347 INFO L374 stractBuchiCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-07-13 03:27:05,348 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:27:05,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 48 transitions. [2022-07-13 03:27:05,348 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-07-13 03:27:05,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:27:05,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:27:05,349 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:27:05,349 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:27:05,349 INFO L752 eck$LassoCheckResult]: Stem: 770#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 747#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#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_add~0#1, main_~zero~0#1, main_~sa~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~tmp___2~0#1, main_~tmp___3~0#1, main_~tmp___4~0#1, main_~tmp___5~0#1, main_~tmp___6~0#1, main_~tmp___7~0#1, main_~tmp___8~0#1, main_~tmp___9~0#1, main_~__retres23~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_add~0#1;havoc main_~zero~0#1;havoc main_~sa~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~tmp___2~0#1;havoc main_~tmp___3~0#1;havoc main_~tmp___4~0#1;havoc main_~tmp___5~0#1;havoc main_~tmp___6~0#1;havoc main_~tmp___7~0#1;havoc main_~tmp___8~0#1;havoc main_~tmp___9~0#1;havoc main_~__retres23~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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; 748#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 771#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 749#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#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~nondet4#1, base2flt_#t~nondet5#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; 750#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 752#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 753#L47-3 [2022-07-13 03:27:05,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:05,350 INFO L754 eck$LassoCheckResult]: Loop: 753#L47-3 assume !false; 769#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 762#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 753#L47-3 [2022-07-13 03:27:05,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920711, now seen corresponding path program 1 times [2022-07-13 03:27:05,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:05,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760050444] [2022-07-13 03:27:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:05,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash 153118, now seen corresponding path program 1 times [2022-07-13 03:27:05,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:05,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997489549] [2022-07-13 03:27:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:05,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,380 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 876132888, now seen corresponding path program 1 times [2022-07-13 03:27:05,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:05,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191369965] [2022-07-13 03:27:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:05,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,398 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:05,434 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:05,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:05,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:05,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:05,434 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:27:05,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:05,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:05,435 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2022-07-13 03:27:05,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:05,435 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:05,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:05,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:05,494 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:05,494 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:27:05,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:05,500 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) [2022-07-13 03:27:05,501 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 [2022-07-13 03:27:05,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:05,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:05,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:05,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:05,540 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) [2022-07-13 03:27:05,541 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 [2022-07-13 03:27:05,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:27:05,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:05,570 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:27:05,573 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 [2022-07-13 03:27:05,573 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:05,573 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:05,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:05,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:05,573 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:27:05,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:05,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:05,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2022-07-13 03:27:05,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:05,574 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:05,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:05,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:05,658 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:05,659 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:27:05,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:05,664 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) [2022-07-13 03:27:05,666 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 [2022-07-13 03:27:05,667 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 [2022-07-13 03:27:05,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:05,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:05,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:05,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:05,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:05,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:05,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:05,690 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:27:05,693 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:27:05,693 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:27:05,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:05,696 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) [2022-07-13 03:27:05,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:27:05,706 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:27:05,706 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:27:05,706 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-07-13 03:27:05,731 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 [2022-07-13 03:27:05,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:05,734 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:27:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:05,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:27:05,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:05,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:27:05,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:27:05,827 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:27:05,828 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 48 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:05,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 48 transitions. cyclomatic complexity: 19. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 69 states and 103 transitions. Complement of second has 5 states. [2022-07-13 03:27:05,858 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 [2022-07-13 03:27:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2022-07-13 03:27:05,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-13 03:27:05,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:05,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-13 03:27:05,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:05,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 7 letters. Loop has 6 letters. [2022-07-13 03:27:05,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:05,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 103 transitions. [2022-07-13 03:27:05,862 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-07-13 03:27:05,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 57 states and 82 transitions. [2022-07-13 03:27:05,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-07-13 03:27:05,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2022-07-13 03:27:05,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2022-07-13 03:27:05,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:27:05,863 INFO L369 hiAutomatonCegarLoop]: Abstraction has 57 states and 82 transitions. [2022-07-13 03:27:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2022-07-13 03:27:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2022-07-13 03:27:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 35 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) [2022-07-13 03:27:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2022-07-13 03:27:05,866 INFO L392 hiAutomatonCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-13 03:27:05,866 INFO L374 stractBuchiCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-13 03:27:05,866 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:27:05,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 52 transitions. [2022-07-13 03:27:05,867 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-07-13 03:27:05,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:27:05,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:27:05,867 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:27:05,867 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:27:05,868 INFO L752 eck$LassoCheckResult]: Stem: 924#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 900#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#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_add~0#1, main_~zero~0#1, main_~sa~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~tmp___2~0#1, main_~tmp___3~0#1, main_~tmp___4~0#1, main_~tmp___5~0#1, main_~tmp___6~0#1, main_~tmp___7~0#1, main_~tmp___8~0#1, main_~tmp___9~0#1, main_~__retres23~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_add~0#1;havoc main_~zero~0#1;havoc main_~sa~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~tmp___2~0#1;havoc main_~tmp___3~0#1;havoc main_~tmp___4~0#1;havoc main_~tmp___5~0#1;havoc main_~tmp___6~0#1;havoc main_~tmp___7~0#1;havoc main_~tmp___8~0#1;havoc main_~tmp___9~0#1;havoc main_~__retres23~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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; 901#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 927#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 902#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#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~nondet4#1, base2flt_#t~nondet5#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; 903#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 905#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 907#L57-5 [2022-07-13 03:27:05,868 INFO L754 eck$LassoCheckResult]: Loop: 907#L57-5 assume !false; 908#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 909#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 907#L57-5 [2022-07-13 03:27:05,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920737, now seen corresponding path program 1 times [2022-07-13 03:27:05,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:05,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892993215] [2022-07-13 03:27:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:05,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash 178877, now seen corresponding path program 1 times [2022-07-13 03:27:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:05,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580085235] [2022-07-13 03:27:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,896 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash 876933213, now seen corresponding path program 1 times [2022-07-13 03:27:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053158419] [2022-07-13 03:27:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:05,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,913 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:05,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:05,949 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:05,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:05,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:05,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:05,950 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:27:05,950 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:05,950 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:05,950 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:05,950 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2022-07-13 03:27:05,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:05,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:05,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:05,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:06,074 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:06,075 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:27:06,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,076 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) [2022-07-13 03:27:06,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:06,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:06,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:27:06,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:27:06,129 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 [2022-07-13 03:27:06,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:06,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,135 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) [2022-07-13 03:27:06,136 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 [2022-07-13 03:27:06,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:06,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:06,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:06,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,163 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) [2022-07-13 03:27:06,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:27:06,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:06,171 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 [2022-07-13 03:27:06,213 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:27:06,219 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 [2022-07-13 03:27:06,219 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:06,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:06,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:06,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:06,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:27:06,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:06,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:06,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2022-07-13 03:27:06,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:06,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:06,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:06,316 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:27:06,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,318 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) [2022-07-13 03:27:06,331 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 [2022-07-13 03:27:06,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:06,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:06,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:06,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:06,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:06,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:06,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:06,344 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 [2022-07-13 03:27:06,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:27:06,378 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 [2022-07-13 03:27:06,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,380 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) [2022-07-13 03:27:06,381 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 [2022-07-13 03:27:06,383 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 [2022-07-13 03:27:06,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:06,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:06,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:06,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:06,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:06,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:06,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:06,399 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:27:06,401 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:27:06,401 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:27:06,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,402 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) [2022-07-13 03:27:06,405 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 [2022-07-13 03:27:06,406 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:27:06,406 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:27:06,406 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:27:06,406 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-07-13 03:27:06,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:06,422 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:27:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:06,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:27:06,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:06,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:27:06,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:27:06,476 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:27:06,476 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 52 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:06,497 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 52 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 106 transitions. Complement of second has 5 states. [2022-07-13 03:27:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:27:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-07-13 03:27:06,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-13 03:27:06,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:06,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-13 03:27:06,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:06,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 7 letters. Loop has 6 letters. [2022-07-13 03:27:06,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:06,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 106 transitions. [2022-07-13 03:27:06,501 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-07-13 03:27:06,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 59 states and 85 transitions. [2022-07-13 03:27:06,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-13 03:27:06,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2022-07-13 03:27:06,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 85 transitions. [2022-07-13 03:27:06,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:27:06,503 INFO L369 hiAutomatonCegarLoop]: Abstraction has 59 states and 85 transitions. [2022-07-13 03:27:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 85 transitions. [2022-07-13 03:27:06,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2022-07-13 03:27:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.435897435897436) internal successors, (56), 38 states have internal predecessors, (56), 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) [2022-07-13 03:27:06,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2022-07-13 03:27:06,506 INFO L392 hiAutomatonCegarLoop]: Abstraction has 39 states and 56 transitions. [2022-07-13 03:27:06,506 INFO L374 stractBuchiCegarLoop]: Abstraction has 39 states and 56 transitions. [2022-07-13 03:27:06,506 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:27:06,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 56 transitions. [2022-07-13 03:27:06,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-07-13 03:27:06,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:27:06,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:27:06,507 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:27:06,508 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:27:06,508 INFO L752 eck$LassoCheckResult]: Stem: 1084#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1057#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#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_add~0#1, main_~zero~0#1, main_~sa~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~tmp___2~0#1, main_~tmp___3~0#1, main_~tmp___4~0#1, main_~tmp___5~0#1, main_~tmp___6~0#1, main_~tmp___7~0#1, main_~tmp___8~0#1, main_~tmp___9~0#1, main_~__retres23~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_add~0#1;havoc main_~zero~0#1;havoc main_~sa~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~tmp___2~0#1;havoc main_~tmp___3~0#1;havoc main_~tmp___4~0#1;havoc main_~tmp___5~0#1;havoc main_~tmp___6~0#1;havoc main_~tmp___7~0#1;havoc main_~tmp___8~0#1;havoc main_~tmp___9~0#1;havoc main_~__retres23~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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; 1058#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1087#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1060#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#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~nondet4#1, base2flt_#t~nondet5#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; 1061#L29-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1059#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1077#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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~nondet4#1, base2flt_#t~nondet5#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; 1081#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1074#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1075#L57-8 [2022-07-13 03:27:06,508 INFO L754 eck$LassoCheckResult]: Loop: 1075#L57-8 assume !false; 1072#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1073#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1075#L57-8 [2022-07-13 03:27:06,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,509 INFO L85 PathProgramCache]: Analyzing trace with hash 877203369, now seen corresponding path program 1 times [2022-07-13 03:27:06,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:06,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446160579] [2022-07-13 03:27:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:06,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,520 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash 283142, now seen corresponding path program 1 times [2022-07-13 03:27:06,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:06,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096925622] [2022-07-13 03:27:06,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:06,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:06,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2110176930, now seen corresponding path program 1 times [2022-07-13 03:27:06,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:06,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899016868] [2022-07-13 03:27:06,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:06,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,554 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:06,596 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:06,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:06,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:06,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:06,596 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:27:06,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:06,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:06,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2022-07-13 03:27:06,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:06,596 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:06,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,672 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:06,672 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:27:06,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,674 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) [2022-07-13 03:27:06,677 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 [2022-07-13 03:27:06,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:06,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:06,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:06,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,704 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) [2022-07-13 03:27:06,705 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 [2022-07-13 03:27:06,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:27:06,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:06,731 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:27:06,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-07-13 03:27:06,734 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:06,734 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:06,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:06,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:06,734 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:27:06,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:06,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:06,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2022-07-13 03:27:06,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:06,735 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:06,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:06,810 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:06,810 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:27:06,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,812 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) [2022-07-13 03:27:06,822 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 [2022-07-13 03:27:06,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:06,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:06,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:06,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:06,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:06,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:06,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:06,832 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 [2022-07-13 03:27:06,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:27:06,850 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:27:06,850 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:27:06,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:06,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:06,856 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) [2022-07-13 03:27:06,861 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:27:06,861 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:27:06,861 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:27:06,861 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-07-13 03:27:06,883 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 [2022-07-13 03:27:06,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:06,889 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:27:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:06,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:27:06,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:06,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:27:06,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:27:06,942 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-13 03:27:06,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 56 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:06,954 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 56 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 60 transitions. Complement of second has 4 states. [2022-07-13 03:27:06,955 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 [2022-07-13 03:27:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2022-07-13 03:27:06,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 47 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-13 03:27:06,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:06,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 47 transitions. Stem has 13 letters. Loop has 3 letters. [2022-07-13 03:27:06,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:06,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-13 03:27:06,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:06,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 60 transitions. [2022-07-13 03:27:06,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 03:27:06,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 36 states and 52 transitions. [2022-07-13 03:27:06,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2022-07-13 03:27:06,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-07-13 03:27:06,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 52 transitions. [2022-07-13 03:27:06,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:27:06,964 INFO L369 hiAutomatonCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-13 03:27:06,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 52 transitions. [2022-07-13 03:27:06,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-13 03:27:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 35 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) [2022-07-13 03:27:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2022-07-13 03:27:06,966 INFO L392 hiAutomatonCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-13 03:27:06,966 INFO L374 stractBuchiCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-13 03:27:06,966 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:27:06,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 52 transitions. [2022-07-13 03:27:06,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 03:27:06,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:27:06,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:27:06,967 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:27:06,967 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:27:06,967 INFO L752 eck$LassoCheckResult]: Stem: 1222#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1196#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#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_add~0#1, main_~zero~0#1, main_~sa~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~tmp___2~0#1, main_~tmp___3~0#1, main_~tmp___4~0#1, main_~tmp___5~0#1, main_~tmp___6~0#1, main_~tmp___7~0#1, main_~tmp___8~0#1, main_~tmp___9~0#1, main_~__retres23~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_add~0#1;havoc main_~zero~0#1;havoc main_~sa~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~tmp___2~0#1;havoc main_~tmp___3~0#1;havoc main_~tmp___4~0#1;havoc main_~tmp___5~0#1;havoc main_~tmp___6~0#1;havoc main_~tmp___7~0#1;havoc main_~tmp___8~0#1;havoc main_~tmp___9~0#1;havoc main_~__retres23~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#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#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1223#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1199#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#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~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1200#L29-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1198#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1216#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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~nondet4#1, base2flt_#t~nondet5#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; 1217#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1214#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1215#L47-5 [2022-07-13 03:27:06,967 INFO L754 eck$LassoCheckResult]: Loop: 1215#L47-5 assume !false; 1219#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1224#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1215#L47-5 [2022-07-13 03:27:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 877203343, now seen corresponding path program 1 times [2022-07-13 03:27:06,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:06,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59260867] [2022-07-13 03:27:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:06,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:06,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash 257383, now seen corresponding path program 1 times [2022-07-13 03:27:06,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:06,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163448217] [2022-07-13 03:27:06,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:06,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:06,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:06,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2110977255, now seen corresponding path program 1 times [2022-07-13 03:27:06,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:27:06,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867381385] [2022-07-13 03:27:06,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:27:06,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:27:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:07,008 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:27:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:27:07,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:27:07,059 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:07,060 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:07,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:07,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:07,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:27:07,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:07,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:07,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:07,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2022-07-13 03:27:07,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:07,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:07,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:07,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:07,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:07,119 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:27:07,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:07,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:07,124 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) [2022-07-13 03:27:07,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:27:07,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:07,145 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 [2022-07-13 03:27:07,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:07,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:07,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:07,179 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) [2022-07-13 03:27:07,192 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 [2022-07-13 03:27:07,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:27:07,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:27:07,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:07,255 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:27:07,261 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 [2022-07-13 03:27:07,262 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:27:07,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:27:07,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:27:07,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:27:07,262 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:27:07,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:07,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:27:07,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:27:07,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2022-07-13 03:27:07,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:27:07,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:27:07,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:07,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:27:07,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:27:07,320 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:27:07,320 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:27:07,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:07,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:07,324 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) [2022-07-13 03:27:07,332 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 [2022-07-13 03:27:07,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:27:07,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:27:07,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:27:07,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:27:07,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:27:07,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:27:07,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:27:07,343 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 [2022-07-13 03:27:07,353 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:27:07,364 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:27:07,364 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:27:07,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:27:07,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:27:07,366 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) [2022-07-13 03:27:07,366 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 [2022-07-13 03:27:07,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:27:07,368 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:27:07,368 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:27:07,368 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-07-13 03:27:07,384 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 [2022-07-13 03:27:07,385 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:27:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:27:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:07,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:27:07,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:27:07,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:27:07,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:27:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:27:07,463 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:27:07,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 52 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:07,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 52 transitions. cyclomatic complexity: 19. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 56 transitions. Complement of second has 4 states. [2022-07-13 03:27:07,468 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 [2022-07-13 03:27:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:27:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-07-13 03:27:07,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-13 03:27:07,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 13 letters. Loop has 3 letters. [2022-07-13 03:27:07,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-13 03:27:07,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:27:07,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 56 transitions. [2022-07-13 03:27:07,472 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:27:07,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2022-07-13 03:27:07,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:27:07,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:27:07,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:27:07,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:27:07,473 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:27:07,473 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:27:07,473 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:27:07,473 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:27:07,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:27:07,474 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:27:07,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:27:07,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:27:07 BoogieIcfgContainer [2022-07-13 03:27:07,488 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:27:07,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:27:07,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:27:07,489 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:27:07,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:27:03" (3/4) ... [2022-07-13 03:27:07,493 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:27:07,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:27:07,497 INFO L158 Benchmark]: Toolchain (without parser) took 4733.15ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 70.3MB in the beginning and 98.9MB in the end (delta: -28.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-07-13 03:27:07,497 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:27:07,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.82ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 56.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 03:27:07,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.60ms. Allocated memory is still 104.9MB. Free memory was 56.1MB in the beginning and 53.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:27:07,498 INFO L158 Benchmark]: Boogie Preprocessor took 49.17ms. Allocated memory is still 104.9MB. Free memory was 53.0MB in the beginning and 82.3MB in the end (delta: -29.3MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-07-13 03:27:07,498 INFO L158 Benchmark]: RCFGBuilder took 660.13ms. Allocated memory is still 104.9MB. Free memory was 82.3MB in the beginning and 56.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-13 03:27:07,499 INFO L158 Benchmark]: BuchiAutomizer took 3675.53ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 56.3MB in the beginning and 98.9MB in the end (delta: -42.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:27:07,499 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 142.6MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:27:07,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.82ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 56.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.60ms. Allocated memory is still 104.9MB. Free memory was 56.1MB in the beginning and 53.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.17ms. Allocated memory is still 104.9MB. Free memory was 53.0MB in the beginning and 82.3MB in the end (delta: -29.3MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 660.13ms. Allocated memory is still 104.9MB. Free memory was 82.3MB in the beginning and 56.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3675.53ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 56.3MB in the beginning and 98.9MB in the end (delta: -42.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 142.6MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. 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, 66 StatesRemovedByMinimization, 4 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, 464 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 522 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 470 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div570 bol100 ite100 ukn100 eq132 hnf96 smp42 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:27:07,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-13 03:27:07,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE