./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 35987657 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-?-3598765 [2022-07-22 01:46:01,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:46:01,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:46:01,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:46:01,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:46:01,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:46:01,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:46:01,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:46:01,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:46:01,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:46:01,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:46:01,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:46:01,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:46:01,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:46:01,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:46:01,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:46:01,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:46:01,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:46:01,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:46:01,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:46:01,291 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:46:01,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:46:01,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:46:01,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:46:01,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:46:01,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:46:01,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:46:01,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:46:01,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:46:01,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:46:01,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:46:01,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:46:01,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:46:01,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:46:01,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:46:01,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:46:01,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:46:01,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:46:01,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:46:01,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:46:01,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:46:01,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:46:01,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 01:46:01,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:46:01,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:46:01,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:46:01,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:46:01,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:46:01,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:46:01,343 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:46:01,343 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:46:01,343 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:46:01,344 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:46:01,344 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:46:01,344 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:46:01,344 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:46:01,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:46:01,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:46:01,346 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:46:01,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:46:01,346 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:46:01,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:46:01,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:46:01,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:46:01,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:46:01,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:46:01,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:46:01,349 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:46:01,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2022-07-22 01:46:01,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:46:01,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:46:01,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:46:01,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:46:01,659 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:46:01,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-07-22 01:46:01,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eee259e6/5d886d62effb4677b6c8525fa99cb17e/FLAGf700f5f64 [2022-07-22 01:46:02,128 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:46:02,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-07-22 01:46:02,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eee259e6/5d886d62effb4677b6c8525fa99cb17e/FLAGf700f5f64 [2022-07-22 01:46:02,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eee259e6/5d886d62effb4677b6c8525fa99cb17e [2022-07-22 01:46:02,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:46:02,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:46:02,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:46:02,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:46:02,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:46:02,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb50d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02, skipping insertion in model container [2022-07-22 01:46:02,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:46:02,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:46:02,309 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] [2022-07-22 01:46:02,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:46:02,418 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:46:02,430 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] [2022-07-22 01:46:02,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:46:02,497 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:46:02,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02 WrapperNode [2022-07-22 01:46:02,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:46:02,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:46:02,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:46:02,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:46:02,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,555 INFO L137 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 14, calls inlined = 12, statements flattened = 433 [2022-07-22 01:46:02,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:46:02,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:46:02,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:46:02,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:46:02,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:46:02,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:46:02,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:46:02,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:46:02,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (1/1) ... [2022-07-22 01:46:02,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:02,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:02,638 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) [2022-07-22 01:46:02,640 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 [2022-07-22 01:46:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 01:46:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 01:46:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:46:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:46:02,754 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:46:02,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:46:03,253 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:46:03,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:46:03,260 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-22 01:46:03,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:46:03 BoogieIcfgContainer [2022-07-22 01:46:03,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:46:03,263 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:46:03,263 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:46:03,265 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:46:03,265 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:46:03,265 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:46:02" (1/3) ... [2022-07-22 01:46:03,266 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bbef854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:46:03, skipping insertion in model container [2022-07-22 01:46:03,266 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:46:03,266 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:46:02" (2/3) ... [2022-07-22 01:46:03,267 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bbef854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:46:03, skipping insertion in model container [2022-07-22 01:46:03,267 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:46:03,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:46:03" (3/3) ... [2022-07-22 01:46:03,268 INFO L354 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2022-07-22 01:46:03,318 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:46:03,318 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:46:03,318 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:46:03,318 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:46:03,318 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:46:03,318 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:46:03,319 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:46:03,319 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:46:03,324 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) [2022-07-22 01:46:03,346 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-07-22 01:46:03,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:46:03,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:46:03,352 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:46:03,352 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:46:03,352 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:46:03,353 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) [2022-07-22 01:46:03,359 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-07-22 01:46:03,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:46:03,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:46:03,361 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:46:03,361 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:46:03,366 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 [2022-07-22 01:46:03,366 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 [2022-07-22 01:46:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-07-22 01:46:03,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:03,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765917404] [2022-07-22 01:46:03,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:03,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:46:03,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:46:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765917404] [2022-07-22 01:46:03,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765917404] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:46:03,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:46:03,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:46:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773618567] [2022-07-22 01:46:03,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:46:03,524 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:46:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-07-22 01:46:03,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:03,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823567440] [2022-07-22 01:46:03,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:03,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:03,542 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:03,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:03,586 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:03,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:03,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:03,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:03,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:46:03,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:03,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:03,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:03,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2022-07-22 01:46:03,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:03,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:03,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:03,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:03,700 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:03,701 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:46:03,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:03,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:03,716 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) [2022-07-22 01:46:03,720 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 [2022-07-22 01:46:03,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:03,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:03,767 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:46:03,767 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: [] [2022-07-22 01:46:03,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:46:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:03,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:03,774 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) [2022-07-22 01:46:03,775 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 [2022-07-22 01:46:03,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:03,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:03,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-22 01:46:03,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:03,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:03,820 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) [2022-07-22 01:46:03,826 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 [2022-07-22 01:46:03,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:46:03,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:03,860 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:46:03,866 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 [2022-07-22 01:46:03,866 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:03,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:03,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:03,866 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:03,866 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:46:03,866 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:03,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:03,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:03,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2022-07-22 01:46:03,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:03,867 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:03,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:03,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:03,940 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:03,943 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:46:03,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:03,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:03,958 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) [2022-07-22 01:46:03,960 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 [2022-07-22 01:46:03,960 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 [2022-07-22 01:46:03,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:03,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:03,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:03,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:03,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:03,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:03,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:03,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:46:04,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-22 01:46:04,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:04,020 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) [2022-07-22 01:46:04,036 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 [2022-07-22 01:46:04,037 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 [2022-07-22 01:46:04,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:04,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:04,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:04,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:04,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:04,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:04,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:04,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:46:04,050 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:46:04,051 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:46:04,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:04,064 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) [2022-07-22 01:46:04,082 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:46:04,082 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:46:04,082 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:46:04,083 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-07-22 01:46:04,099 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 [2022-07-22 01:46:04,101 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 [2022-07-22 01:46:04,103 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:46:04,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:04,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:46:04,164 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 [2022-07-22 01:46:04,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:04,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:46:04,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:46:04,253 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 [2022-07-22 01:46:04,268 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) [2022-07-22 01:46:04,375 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. [2022-07-22 01:46:04,383 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 [2022-07-22 01:46:04,387 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) [2022-07-22 01:46:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 500 transitions. [2022-07-22 01:46:04,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 500 transitions. Stem has 4 letters. Loop has 3 letters. [2022-07-22 01:46:04,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:04,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 500 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-22 01:46:04,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:04,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 500 transitions. Stem has 4 letters. Loop has 6 letters. [2022-07-22 01:46:04,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:04,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 443 states and 758 transitions. [2022-07-22 01:46:04,409 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-07-22 01:46:04,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 443 states to 89 states and 146 transitions. [2022-07-22 01:46:04,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-07-22 01:46:04,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2022-07-22 01:46:04,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 146 transitions. [2022-07-22 01:46:04,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:46:04,417 INFO L369 hiAutomatonCegarLoop]: Abstraction has 89 states and 146 transitions. [2022-07-22 01:46:04,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 146 transitions. [2022-07-22 01:46:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 70. [2022-07-22 01:46:04,440 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) [2022-07-22 01:46:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 118 transitions. [2022-07-22 01:46:04,443 INFO L392 hiAutomatonCegarLoop]: Abstraction has 70 states and 118 transitions. [2022-07-22 01:46:04,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:46:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:46:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:46:04,447 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) [2022-07-22 01:46:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:46:04,502 INFO L93 Difference]: Finished difference Result 39 states and 57 transitions. [2022-07-22 01:46:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:46:04,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 57 transitions. [2022-07-22 01:46:04,504 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-07-22 01:46:04,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 57 transitions. [2022-07-22 01:46:04,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-07-22 01:46:04,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-07-22 01:46:04,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 57 transitions. [2022-07-22 01:46:04,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:46:04,508 INFO L369 hiAutomatonCegarLoop]: Abstraction has 39 states and 57 transitions. [2022-07-22 01:46:04,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 57 transitions. [2022-07-22 01:46:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2022-07-22 01:46:04,513 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) [2022-07-22 01:46:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2022-07-22 01:46:04,513 INFO L392 hiAutomatonCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-07-22 01:46:04,513 INFO L374 stractBuchiCegarLoop]: Abstraction has 33 states and 48 transitions. [2022-07-22 01:46:04,514 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:46:04,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 48 transitions. [2022-07-22 01:46:04,514 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-07-22 01:46:04,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:46:04,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:46:04,515 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:46:04,515 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:46:04,515 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 [2022-07-22 01:46:04,515 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 [2022-07-22 01:46:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920711, now seen corresponding path program 1 times [2022-07-22 01:46:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:04,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484241809] [2022-07-22 01:46:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:04,530 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:04,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:04,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash 153118, now seen corresponding path program 1 times [2022-07-22 01:46:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:04,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611331849] [2022-07-22 01:46:04,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:04,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:04,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:04,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash 876132888, now seen corresponding path program 1 times [2022-07-22 01:46:04,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:04,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409724253] [2022-07-22 01:46:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:04,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:04,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:04,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:04,615 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:04,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:04,616 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:04,616 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:04,616 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:46:04,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:04,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:04,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2022-07-22 01:46:04,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:04,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:04,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:04,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:04,671 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:04,671 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:46:04,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:04,673 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) [2022-07-22 01:46:04,697 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 [2022-07-22 01:46:04,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:04,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:04,723 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 [2022-07-22 01:46:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:04,725 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) [2022-07-22 01:46:04,726 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 [2022-07-22 01:46:04,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:46:04,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:04,767 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:46:04,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:46:04,772 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:04,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:04,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:04,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:04,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:46:04,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:04,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:04,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2022-07-22 01:46:04,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:04,772 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:04,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:04,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:04,837 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:04,837 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:46:04,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:04,849 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) [2022-07-22 01:46:04,867 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 [2022-07-22 01:46:04,868 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 [2022-07-22 01:46:04,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:04,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:04,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:04,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:04,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:04,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:04,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:04,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:46:04,904 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:46:04,904 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:46:04,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:04,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:04,919 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) [2022-07-22 01:46:04,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:46:04,924 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:46:04,924 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:46:04,924 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-07-22 01:46:04,939 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 [2022-07-22 01:46:04,943 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 [2022-07-22 01:46:04,944 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:46:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:04,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:46:04,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:04,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:46:04,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:46:05,033 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 [2022-07-22 01:46:05,033 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) [2022-07-22 01:46:05,062 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. [2022-07-22 01:46:05,062 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 [2022-07-22 01:46:05,063 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) [2022-07-22 01:46:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2022-07-22 01:46:05,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-22 01:46:05,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:05,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-22 01:46:05,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:05,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 7 letters. Loop has 6 letters. [2022-07-22 01:46:05,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:05,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 103 transitions. [2022-07-22 01:46:05,064 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-07-22 01:46:05,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 57 states and 82 transitions. [2022-07-22 01:46:05,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-07-22 01:46:05,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2022-07-22 01:46:05,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2022-07-22 01:46:05,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:46:05,065 INFO L369 hiAutomatonCegarLoop]: Abstraction has 57 states and 82 transitions. [2022-07-22 01:46:05,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2022-07-22 01:46:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2022-07-22 01:46:05,066 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) [2022-07-22 01:46:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2022-07-22 01:46:05,067 INFO L392 hiAutomatonCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-22 01:46:05,067 INFO L374 stractBuchiCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-22 01:46:05,067 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:46:05,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 52 transitions. [2022-07-22 01:46:05,067 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-07-22 01:46:05,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:46:05,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:46:05,067 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:46:05,067 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:46:05,068 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 [2022-07-22 01:46:05,068 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 [2022-07-22 01:46:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920737, now seen corresponding path program 1 times [2022-07-22 01:46:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:05,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952856861] [2022-07-22 01:46:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:05,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash 178877, now seen corresponding path program 1 times [2022-07-22 01:46:05,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:05,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160277435] [2022-07-22 01:46:05,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:05,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:05,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,108 INFO L85 PathProgramCache]: Analyzing trace with hash 876933213, now seen corresponding path program 1 times [2022-07-22 01:46:05,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:05,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651110565] [2022-07-22 01:46:05,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:05,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,126 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:05,187 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:05,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:05,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:05,188 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:05,188 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:46:05,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:05,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:05,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2022-07-22 01:46:05,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:05,191 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:05,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:05,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:05,249 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 [2022-07-22 01:46:05,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:05,294 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:46:05,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,308 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) [2022-07-22 01:46:05,314 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 [2022-07-22 01:46:05,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:05,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:05,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:46:05,360 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: [] [2022-07-22 01:46:05,386 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 [2022-07-22 01:46:05,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,389 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) [2022-07-22 01:46:05,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:05,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:05,419 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 [2022-07-22 01:46:05,444 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 [2022-07-22 01:46:05,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,446 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) [2022-07-22 01:46:05,447 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 [2022-07-22 01:46:05,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:46:05,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:05,492 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:46:05,495 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 [2022-07-22 01:46:05,495 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:05,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:05,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:05,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:05,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:46:05,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:05,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:05,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2022-07-22 01:46:05,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:05,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:05,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:05,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:05,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:05,595 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:46:05,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,606 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) [2022-07-22 01:46:05,626 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 [2022-07-22 01:46:05,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:05,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:05,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:05,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:05,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:05,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:05,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:05,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:46:05,661 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 [2022-07-22 01:46:05,675 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 [2022-07-22 01:46:05,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,677 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) [2022-07-22 01:46:05,678 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 [2022-07-22 01:46:05,680 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 [2022-07-22 01:46:05,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:05,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:05,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:05,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:05,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:05,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:05,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:05,702 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:46:05,704 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:46:05,704 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:46:05,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,706 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) [2022-07-22 01:46:05,707 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 [2022-07-22 01:46:05,708 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:46:05,708 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:46:05,708 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:46:05,708 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-07-22 01:46:05,726 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 [2022-07-22 01:46:05,727 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:46:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:05,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:46:05,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:05,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:46:05,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:05,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:46:05,771 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 [2022-07-22 01:46:05,771 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) [2022-07-22 01:46:05,791 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. [2022-07-22 01:46:05,792 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 [2022-07-22 01:46:05,792 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) [2022-07-22 01:46:05,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-07-22 01:46:05,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-22 01:46:05,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:05,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-22 01:46:05,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:05,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 65 transitions. Stem has 7 letters. Loop has 6 letters. [2022-07-22 01:46:05,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:05,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 106 transitions. [2022-07-22 01:46:05,794 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-07-22 01:46:05,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 59 states and 85 transitions. [2022-07-22 01:46:05,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-22 01:46:05,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2022-07-22 01:46:05,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 85 transitions. [2022-07-22 01:46:05,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:46:05,794 INFO L369 hiAutomatonCegarLoop]: Abstraction has 59 states and 85 transitions. [2022-07-22 01:46:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 85 transitions. [2022-07-22 01:46:05,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2022-07-22 01:46:05,796 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) [2022-07-22 01:46:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2022-07-22 01:46:05,796 INFO L392 hiAutomatonCegarLoop]: Abstraction has 39 states and 56 transitions. [2022-07-22 01:46:05,796 INFO L374 stractBuchiCegarLoop]: Abstraction has 39 states and 56 transitions. [2022-07-22 01:46:05,796 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:46:05,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 56 transitions. [2022-07-22 01:46:05,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-07-22 01:46:05,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:46:05,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:46:05,797 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:46:05,797 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:46:05,797 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 [2022-07-22 01:46:05,797 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 [2022-07-22 01:46:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,797 INFO L85 PathProgramCache]: Analyzing trace with hash 877203369, now seen corresponding path program 1 times [2022-07-22 01:46:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:05,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530634226] [2022-07-22 01:46:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:05,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,822 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 283142, now seen corresponding path program 1 times [2022-07-22 01:46:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:05,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903480262] [2022-07-22 01:46:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:05,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:05,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:05,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2110176930, now seen corresponding path program 1 times [2022-07-22 01:46:05,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:05,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212751580] [2022-07-22 01:46:05,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:05,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:05,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:05,882 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:05,882 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:05,882 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:05,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:05,882 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:46:05,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,883 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:05,883 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:05,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2022-07-22 01:46:05,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:05,883 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:05,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:05,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:05,964 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:05,964 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:46:05,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:05,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:05,966 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) [2022-07-22 01:46:05,977 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 [2022-07-22 01:46:05,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:05,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:05,990 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 [2022-07-22 01:46:06,017 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 [2022-07-22 01:46:06,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,018 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) [2022-07-22 01:46:06,019 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 [2022-07-22 01:46:06,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:46:06,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:06,047 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:46:06,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 01:46:06,051 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:06,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:06,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:06,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:06,051 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:46:06,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:06,051 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:06,051 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2022-07-22 01:46:06,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:06,052 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:06,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:06,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:06,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:06,131 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:46:06,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,133 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) [2022-07-22 01:46:06,151 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 [2022-07-22 01:46:06,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:46:06,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:06,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:06,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:06,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:06,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:06,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:06,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:06,175 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:46:06,177 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:46:06,177 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:46:06,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,179 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) [2022-07-22 01:46:06,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:46:06,218 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:46:06,218 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:46:06,218 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-07-22 01:46:06,231 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 [2022-07-22 01:46:06,237 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 [2022-07-22 01:46:06,238 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:46:06,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:06,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:46:06,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:06,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:46:06,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:46:06,294 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 [2022-07-22 01:46:06,294 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) [2022-07-22 01:46:06,298 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. [2022-07-22 01:46:06,299 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 [2022-07-22 01:46:06,299 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) [2022-07-22 01:46:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2022-07-22 01:46:06,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 47 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-22 01:46:06,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:06,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 47 transitions. Stem has 13 letters. Loop has 3 letters. [2022-07-22 01:46:06,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:06,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-22 01:46:06,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:06,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 60 transitions. [2022-07-22 01:46:06,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:46:06,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 36 states and 52 transitions. [2022-07-22 01:46:06,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2022-07-22 01:46:06,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-07-22 01:46:06,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 52 transitions. [2022-07-22 01:46:06,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:46:06,312 INFO L369 hiAutomatonCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-22 01:46:06,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 52 transitions. [2022-07-22 01:46:06,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-22 01:46:06,313 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) [2022-07-22 01:46:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2022-07-22 01:46:06,313 INFO L392 hiAutomatonCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-22 01:46:06,314 INFO L374 stractBuchiCegarLoop]: Abstraction has 36 states and 52 transitions. [2022-07-22 01:46:06,314 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:46:06,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 52 transitions. [2022-07-22 01:46:06,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:46:06,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:46:06,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:46:06,314 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:46:06,314 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:46:06,315 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 [2022-07-22 01:46:06,315 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 [2022-07-22 01:46:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash 877203343, now seen corresponding path program 1 times [2022-07-22 01:46:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:06,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260782082] [2022-07-22 01:46:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:06,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:06,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:06,340 INFO L85 PathProgramCache]: Analyzing trace with hash 257383, now seen corresponding path program 1 times [2022-07-22 01:46:06,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:06,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350815961] [2022-07-22 01:46:06,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:06,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:06,343 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:06,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:06,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:06,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2110977255, now seen corresponding path program 1 times [2022-07-22 01:46:06,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:46:06,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13046381] [2022-07-22 01:46:06,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:46:06,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:46:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:06,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:46:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:46:06,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:46:06,428 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:06,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:06,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:06,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:06,428 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:46:06,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:06,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:06,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2022-07-22 01:46:06,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:06,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:06,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:06,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:06,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:06,462 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:46:06,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,466 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) [2022-07-22 01:46:06,495 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 [2022-07-22 01:46:06,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:46:06,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:06,537 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 [2022-07-22 01:46:06,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,539 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) [2022-07-22 01:46:06,575 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 [2022-07-22 01:46:06,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:46:06,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:46:06,609 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:46:06,617 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 [2022-07-22 01:46:06,618 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:46:06,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:46:06,618 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:46:06,618 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:46:06,618 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:46:06,618 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,618 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:46:06,618 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:46:06,618 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2022-07-22 01:46:06,618 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:46:06,618 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:46:06,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:06,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:46:06,670 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:46:06,670 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:46:06,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,696 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) [2022-07-22 01:46:06,713 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 [2022-07-22 01:46:06,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:46:06,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:46:06,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:46:06,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:46:06,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:46:06,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:46:06,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:46:06,724 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 [2022-07-22 01:46:06,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:46:06,743 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:46:06,743 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:46:06,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:46:06,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:46:06,744 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) [2022-07-22 01:46:06,745 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 [2022-07-22 01:46:06,746 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:46:06,747 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:46:06,747 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:46:06,747 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-07-22 01:46:06,762 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 [2022-07-22 01:46:06,763 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:46:06,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:46:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:06,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:46:06,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:46:06,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:46:06,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:46:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:46:06,814 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 [2022-07-22 01:46:06,814 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) [2022-07-22 01:46:06,834 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. [2022-07-22 01:46:06,834 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 [2022-07-22 01:46:06,835 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) [2022-07-22 01:46:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-07-22 01:46:06,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-22 01:46:06,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:06,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 13 letters. Loop has 3 letters. [2022-07-22 01:46:06,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:06,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-22 01:46:06,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:46:06,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 56 transitions. [2022-07-22 01:46:06,836 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:46:06,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2022-07-22 01:46:06,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:46:06,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:46:06,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:46:06,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:46:06,836 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:46:06,836 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:46:06,836 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:46:06,836 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:46:06,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:46:06,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:46:06,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:46:06,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:46:06 BoogieIcfgContainer [2022-07-22 01:46:06,841 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:46:06,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:46:06,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:46:06,842 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:46:06,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:46:03" (3/4) ... [2022-07-22 01:46:06,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:46:06,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:46:06,857 INFO L158 Benchmark]: Toolchain (without parser) took 4696.46ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 47.7MB in the beginning and 32.6MB in the end (delta: 15.1MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-07-22 01:46:06,857 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:46:06,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.87ms. Allocated memory is still 67.1MB. Free memory was 47.6MB in the beginning and 46.8MB in the end (delta: 785.1kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 01:46:06,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.63ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 43.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 01:46:06,858 INFO L158 Benchmark]: Boogie Preprocessor took 51.00ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 41.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:46:06,858 INFO L158 Benchmark]: RCFGBuilder took 650.97ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 41.3MB in the beginning and 47.7MB in the end (delta: -6.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-07-22 01:46:06,858 INFO L158 Benchmark]: BuchiAutomizer took 3578.81ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.7MB in the beginning and 32.6MB in the end (delta: 15.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-07-22 01:46:06,859 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 98.6MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:46:06,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.87ms. Allocated memory is still 67.1MB. Free memory was 47.6MB in the beginning and 46.8MB in the end (delta: 785.1kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.63ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 43.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.00ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 41.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 650.97ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 41.3MB in the beginning and 47.7MB in the end (delta: -6.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3578.81ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.7MB in the beginning and 32.6MB in the end (delta: 15.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 98.6MB. Free memory is still 32.6MB. 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 3.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 522 SdHoareTripleChecker+Invalid, 0.1s 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: 52ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:46:06,911 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 [2022-07-22 01:46:07,100 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 [2022-07-22 01:46:07,306 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