./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 9a8b2e8d 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_1.3.100.v20150511-1540.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 f4f20531c98faa0af8884f2ddaf47888911b3a46 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:45:39,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:45:39,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:45:39,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:45:39,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:45:39,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:45:39,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:45:39,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:45:39,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:45:39,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:45:39,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:45:39,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:45:39,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:45:39,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:45:39,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:45:39,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:45:39,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:45:39,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:45:39,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:45:39,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:45:39,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:45:39,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:45:39,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:45:39,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:45:39,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:45:39,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:45:39,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:45:39,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:45:39,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:45:39,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:45:39,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:45:39,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:45:39,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:45:39,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:45:39,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:45:39,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:45:39,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:45:39,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:45:39,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:45:39,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:45:39,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:45:39,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 06:45:39,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:45:39,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:45:39,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:45:39,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:45:39,856 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:45:39,857 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:45:39,857 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:45:39,857 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:45:39,857 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:45:39,857 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:45:39,857 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:45:39,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:45:39,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:45:39,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:45:39,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:45:39,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:45:39,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:45:39,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:45:39,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:45:39,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:45:39,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:45:39,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:45:39,860 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:45:39,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:45:39,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:45:39,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:45:39,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:45:39,861 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:45:39,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:45:39,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:45:39,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:45:39,861 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:45:39,862 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:45:39,863 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2020-10-20 06:45:40,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:45:40,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:45:40,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:45:40,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:45:40,070 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:45:40,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-10-20 06:45:40,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92a9449f/ff749913ae88493d9ac5cf42e93fd192/FLAGfe70ad763 [2020-10-20 06:45:40,636 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:45:40,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-10-20 06:45:40,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92a9449f/ff749913ae88493d9ac5cf42e93fd192/FLAGfe70ad763 [2020-10-20 06:45:40,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a92a9449f/ff749913ae88493d9ac5cf42e93fd192 [2020-10-20 06:45:40,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:45:40,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:45:40,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:45:40,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:45:40,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:45:40,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:45:40" (1/1) ... [2020-10-20 06:45:41,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166d61e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41, skipping insertion in model container [2020-10-20 06:45:41,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:45:40" (1/1) ... [2020-10-20 06:45:41,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:45:41,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:45:41,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:45:41,414 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:45:41,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:45:41,478 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:45:41,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41 WrapperNode [2020-10-20 06:45:41,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:45:41,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:45:41,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:45:41,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:45:41,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:45:41,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:45:41,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:45:41,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:45:41,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... [2020-10-20 06:45:41,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:45:41,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:45:41,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:45:41,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:45:41,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:45:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:45:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:45:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:45:42,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:45:42,211 INFO L298 CfgBuilder]: Removed 42 assume(true) statements. [2020-10-20 06:45:42,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:45:42 BoogieIcfgContainer [2020-10-20 06:45:42,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:45:42,214 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:45:42,214 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:45:42,217 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:45:42,218 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:45:42,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:45:40" (1/3) ... [2020-10-20 06:45:42,220 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8703e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:45:42, skipping insertion in model container [2020-10-20 06:45:42,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:45:42,220 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:41" (2/3) ... [2020-10-20 06:45:42,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8703e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:45:42, skipping insertion in model container [2020-10-20 06:45:42,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:45:42,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:45:42" (3/3) ... [2020-10-20 06:45:42,223 INFO L373 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2020-10-20 06:45:42,269 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:45:42,270 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:45:42,270 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:45:42,270 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:45:42,271 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:45:42,271 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:45:42,271 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:45:42,271 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:45:42,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-10-20 06:45:42,319 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-10-20 06:45:42,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:42,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:42,326 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:45:42,327 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:42,327 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:45:42,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-10-20 06:45:42,334 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-10-20 06:45:42,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:42,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:42,335 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:45:42,335 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:42,343 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 14#L21true assume !(0 == base2flt_~m % 4294967296); 59#L27true assume !(base2flt_~m % 4294967296 < 16777216); 52#L49-2true [2020-10-20 06:45:42,343 INFO L796 eck$LassoCheckResult]: Loop: 52#L49-2true assume !false; 85#L50true assume base2flt_~m % 4294967296 >= 33554432; 10#L51true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 52#L49-2true [2020-10-20 06:45:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2020-10-20 06:45:42,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:42,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880287311] [2020-10-20 06:45:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:42,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880287311] [2020-10-20 06:45:42,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:45:42,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:45:42,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45221881] [2020-10-20 06:45:42,552 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:45:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:42,553 INFO L82 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2020-10-20 06:45:42,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:42,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707762621] [2020-10-20 06:45:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:42,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:42,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:42,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:42,653 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:42,654 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:42,654 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:42,654 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:42,654 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:45:42,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:42,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:42,655 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:42,655 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2020-10-20 06:45:42,655 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:42,655 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:42,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:42,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:42,806 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:42,807 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:42,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:42,816 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:42,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:45:42,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:45:42,895 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:45:42,897 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:42,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:42,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:42,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:42,898 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:42,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:42,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:42,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:42,898 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2020-10-20 06:45:42,898 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:42,898 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:42,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:42,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:43,024 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:43,030 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:43,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:43,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:43,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:43,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:43,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:43,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:43,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:43,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,050 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:43,058 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:45:43,059 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:45:43,066 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:45:43,067 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:43,068 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2020-10-20 06:45:43,104 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:45:43,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:43,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:43,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:43,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:43,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:43,193 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 [2020-10-20 06:45:43,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states. Second operand 3 states. [2020-10-20 06:45:43,289 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states.. Second operand 3 states. Result 277 states and 435 transitions. Complement of second has 6 states. [2020-10-20 06:45:43,289 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 [2020-10-20 06:45:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:45:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2020-10-20 06:45:43,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 284 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-20 06:45:43,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:43,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 284 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-20 06:45:43,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:43,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 284 transitions. Stem has 4 letters. Loop has 6 letters. [2020-10-20 06:45:43,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:43,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 435 transitions. [2020-10-20 06:45:43,318 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2020-10-20 06:45:43,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 57 states and 82 transitions. [2020-10-20 06:45:43,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2020-10-20 06:45:43,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-10-20 06:45:43,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2020-10-20 06:45:43,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:45:43,326 INFO L691 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-10-20 06:45:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2020-10-20 06:45:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2020-10-20 06:45:43,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 06:45:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2020-10-20 06:45:43,357 INFO L714 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2020-10-20 06:45:43,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:45:43,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:45:43,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:45:43,361 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand 3 states. [2020-10-20 06:45:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:45:43,416 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-10-20 06:45:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:45:43,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2020-10-20 06:45:43,418 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-20 06:45:43,419 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2020-10-20 06:45:43,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-20 06:45:43,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-10-20 06:45:43,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-10-20 06:45:43,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:45:43,420 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-20 06:45:43,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-10-20 06:45:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-20 06:45:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-20 06:45:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2020-10-20 06:45:43,422 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-20 06:45:43,423 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-20 06:45:43,423 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:45:43,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2020-10-20 06:45:43,424 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-20 06:45:43,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:43,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:43,424 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:45:43,424 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:43,425 INFO L794 eck$LassoCheckResult]: Stem: 509#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 507#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 508#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 501#L71 base2flt_#res := base2flt_~__retres4~0; 502#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 505#L21-1 assume !(0 == base2flt_~m % 4294967296); 487#L27-1 assume !(base2flt_~m % 4294967296 < 16777216); 488#L49-5 [2020-10-20 06:45:43,425 INFO L796 eck$LassoCheckResult]: Loop: 488#L49-5 assume !false; 497#L50-1 assume base2flt_~m % 4294967296 >= 33554432; 498#L51-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 488#L49-5 [2020-10-20 06:45:43,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:43,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2020-10-20 06:45:43,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:43,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434494290] [2020-10-20 06:45:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:43,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:43,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:43,466 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:43,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:43,467 INFO L82 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2020-10-20 06:45:43,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:43,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028720567] [2020-10-20 06:45:43,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:43,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:43,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:43,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:43,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2020-10-20 06:45:43,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:43,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581936481] [2020-10-20 06:45:43,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:43,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:43,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:43,587 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:43,618 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:43,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:43,618 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:43,618 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:43,618 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:45:43,618 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,618 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:43,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:43,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2020-10-20 06:45:43,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:43,619 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:43,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:43,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:43,715 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:43,715 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:43,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:43,721 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,765 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:45:43,765 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:43,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:43,780 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:43,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:45:43,829 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,866 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:45:43,869 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:43,869 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:43,869 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:43,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:43,869 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:43,869 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:43,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:43,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2020-10-20 06:45:43,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:43,870 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:43,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:43,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:43,959 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:43,959 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:43,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:43,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:43,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:43,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:43,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:43,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:43,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:43,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:45:43,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:44,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:44,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:44,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:44,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:44,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:44,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:44,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:44,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,033 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:44,036 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:45:44,036 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:44,040 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:45:44,040 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:45:44,041 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:44,041 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,075 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:45:44,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:44,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:44,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:44,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:44,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:44,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:44,150 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 [2020-10-20 06:45:44,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-10-20 06:45:44,174 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 41 states and 51 transitions. Complement of second has 5 states. [2020-10-20 06:45:44,175 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 [2020-10-20 06:45:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:45:44,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-10-20 06:45:44,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-20 06:45:44,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:44,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:45:44,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:44,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-20 06:45:44,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:44,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2020-10-20 06:45:44,183 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-10-20 06:45:44,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2020-10-20 06:45:44,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2020-10-20 06:45:44,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2020-10-20 06:45:44,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2020-10-20 06:45:44,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:45:44,187 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-10-20 06:45:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2020-10-20 06:45:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2020-10-20 06:45:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 06:45:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-20 06:45:44,192 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 06:45:44,192 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 06:45:44,192 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:45:44,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-10-20 06:45:44,193 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-20 06:45:44,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:44,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:44,195 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:45:44,196 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:44,196 INFO L794 eck$LassoCheckResult]: Stem: 627#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 625#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 626#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 619#L71 base2flt_#res := base2flt_~__retres4~0; 620#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 623#L21-1 assume !(0 == base2flt_~m % 4294967296); 602#L27-1 assume base2flt_~m % 4294967296 < 16777216; 604#L39-3 [2020-10-20 06:45:44,196 INFO L796 eck$LassoCheckResult]: Loop: 604#L39-3 assume !false; 622#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 605#L39-2 assume base2flt_~m % 4294967296 < 16777216; 604#L39-3 [2020-10-20 06:45:44,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:44,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2020-10-20 06:45:44,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:44,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891007398] [2020-10-20 06:45:44,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:44,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:44,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:44,291 INFO L82 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2020-10-20 06:45:44,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:44,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028397637] [2020-10-20 06:45:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:44,311 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:44,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:44,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2020-10-20 06:45:44,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:44,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145562430] [2020-10-20 06:45:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:44,390 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:44,421 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:44,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:44,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:44,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:44,422 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:45:44,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:44,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:44,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2020-10-20 06:45:44,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:44,422 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:44,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:44,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:44,501 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:44,502 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:44,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:45:44,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:45:44,544 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:44,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:44,557 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:44,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:45:44,604 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,641 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:45:44,643 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:44,643 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:44,643 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:44,643 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:44,644 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:44,644 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,644 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:44,644 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:44,644 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2020-10-20 06:45:44,645 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:44,645 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:44,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:44,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:44,721 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:44,721 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:44,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:44,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:44,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:44,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:44,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:44,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:44,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:45:44,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:44,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:44,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:44,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:44,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:44,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:44,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:44,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:44,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:44,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:45:44,791 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:44,802 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:45:44,803 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:45:44,803 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:44,803 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:44,838 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:45:44,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:44,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:44,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:44,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:44,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:44,925 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 [2020-10-20 06:45:44,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-10-20 06:45:44,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 45 states and 56 transitions. Complement of second has 5 states. [2020-10-20 06:45:44,937 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 [2020-10-20 06:45:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:45:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2020-10-20 06:45:44,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-20 06:45:44,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:44,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:45:44,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:44,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-20 06:45:44,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:44,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2020-10-20 06:45:44,941 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-20 06:45:44,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2020-10-20 06:45:44,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-10-20 06:45:44,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-10-20 06:45:44,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2020-10-20 06:45:44,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:45:44,942 INFO L691 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2020-10-20 06:45:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2020-10-20 06:45:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2020-10-20 06:45:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 06:45:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-10-20 06:45:44,945 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-20 06:45:44,945 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-20 06:45:44,945 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:45:44,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2020-10-20 06:45:44,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 06:45:44,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:44,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:44,947 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:45:44,947 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:44,947 INFO L794 eck$LassoCheckResult]: Stem: 753#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 751#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 752#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 744#L71 base2flt_#res := base2flt_~__retres4~0; 745#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 749#L21-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 734#L71-1 base2flt_#res := base2flt_~__retres4~0; 735#L72-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 743#L21-2 assume !(0 == base2flt_~m % 4294967296); 750#L27-2 assume !(base2flt_~m % 4294967296 < 16777216); 736#L49-8 [2020-10-20 06:45:44,948 INFO L796 eck$LassoCheckResult]: Loop: 736#L49-8 assume !false; 732#L50-2 assume base2flt_~m % 4294967296 >= 33554432; 733#L51-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 736#L49-8 [2020-10-20 06:45:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:44,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2020-10-20 06:45:44,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:44,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810704121] [2020-10-20 06:45:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:44,995 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,029 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:45,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,030 INFO L82 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2020-10-20 06:45:45,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:45,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209537081] [2020-10-20 06:45:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,041 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:45,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,041 INFO L82 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2020-10-20 06:45:45,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:45,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109609488] [2020-10-20 06:45:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,069 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:45,094 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:45,094 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:45,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:45,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:45,095 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:45:45,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:45,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:45,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2020-10-20 06:45:45,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:45,095 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:45,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,178 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:45,178 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:45,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:45,190 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:45,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:45:45,231 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,267 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:45:45,269 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:45,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:45,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:45,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:45,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:45,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:45,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:45,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2020-10-20 06:45:45,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:45,271 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:45,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,361 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:45,361 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:45,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:45,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:45,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:45,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:45,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:45,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:45,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:45:45,376 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:45,378 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:45:45,379 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:45,390 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:45:45,390 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:45:45,390 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:45,390 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,421 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:45:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:45,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:45,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:45,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:45,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:45,472 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 [2020-10-20 06:45:45,472 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-10-20 06:45:45,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 33 states and 43 transitions. Complement of second has 4 states. [2020-10-20 06:45:45,484 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 [2020-10-20 06:45:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:45:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-10-20 06:45:45,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:45:45,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:45,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 06:45:45,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:45,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-20 06:45:45,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:45,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2020-10-20 06:45:45,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:45:45,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2020-10-20 06:45:45,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-20 06:45:45,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-20 06:45:45,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-10-20 06:45:45,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:45:45,489 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 06:45:45,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-10-20 06:45:45,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-20 06:45:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 06:45:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-20 06:45:45,493 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 06:45:45,493 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 06:45:45,493 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:45:45,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-10-20 06:45:45,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:45:45,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:45,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:45,495 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:45:45,495 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:45,495 INFO L794 eck$LassoCheckResult]: Stem: 871#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 869#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 870#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 861#L71 base2flt_#res := base2flt_~__retres4~0; 862#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 867#L21-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 853#L71-1 base2flt_#res := base2flt_~__retres4~0; 854#L72-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 863#L21-2 assume !(0 == base2flt_~m % 4294967296); 868#L27-2 assume base2flt_~m % 4294967296 < 16777216; 872#L39-5 [2020-10-20 06:45:45,496 INFO L796 eck$LassoCheckResult]: Loop: 872#L39-5 assume !false; 859#L30-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 860#L39-4 assume base2flt_~m % 4294967296 < 16777216; 872#L39-5 [2020-10-20 06:45:45,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2020-10-20 06:45:45,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:45,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084288177] [2020-10-20 06:45:45,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,523 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:45,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,524 INFO L82 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2020-10-20 06:45:45,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:45,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983019262] [2020-10-20 06:45:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,560 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:45,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,561 INFO L82 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2020-10-20 06:45:45,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:45,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305644513] [2020-10-20 06:45:45,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:45,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:45,607 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:45,645 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:45,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:45,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:45,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:45,645 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:45:45,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,645 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:45,645 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:45,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2020-10-20 06:45:45,646 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:45,646 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:45,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,713 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:45,713 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:45,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:45:45,725 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:45,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:45:45,764 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,802 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:45:45,804 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:45,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:45,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:45,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:45,805 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:45,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:45,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:45,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2020-10-20 06:45:45,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:45,805 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:45,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:45,881 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:45,881 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:45,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:45,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:45,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:45,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:45,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:45,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:45,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:45:45,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:45,901 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:45:45,901 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:45,904 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:45:45,904 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:45:45,904 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:45,904 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:45,928 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:45:45,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:45,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:45,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:45,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:45,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:45,985 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 [2020-10-20 06:45:45,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-20 06:45:45,990 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 31 states and 39 transitions. Complement of second has 4 states. [2020-10-20 06:45:45,990 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 [2020-10-20 06:45:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:45:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-10-20 06:45:45,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:45:45,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:45,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 06:45:45,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:45,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-20 06:45:45,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:45,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-10-20 06:45:45,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:45:45,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-10-20 06:45:45,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:45:45,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:45:45,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:45:45,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:45:45,994 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:45:45,994 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:45:45,994 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:45:45,994 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:45:45,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:45:45,994 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:45:45,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:45:46,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:45:46 BoogieIcfgContainer [2020-10-20 06:45:46,001 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:45:46,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:45:46,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:45:46,001 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:45:46,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:45:42" (3/4) ... [2020-10-20 06:45:46,005 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:45:46,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:45:46,008 INFO L168 Benchmark]: Toolchain (without parser) took 5018.24 ms. Allocated memory was 34.6 MB in the beginning and 64.5 MB in the end (delta: 29.9 MB). Free memory was 14.7 MB in the beginning and 25.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,009 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 33.0 MB. Free memory was 9.9 MB in the beginning and 9.8 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.74 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 13.7 MB in the beginning and 21.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.42 ms. Allocated memory is still 44.0 MB. Free memory was 21.6 MB in the beginning and 18.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,011 INFO L168 Benchmark]: Boogie Preprocessor took 36.38 ms. Allocated memory is still 44.0 MB. Free memory was 18.9 MB in the beginning and 16.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,012 INFO L168 Benchmark]: RCFGBuilder took 635.82 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 16.8 MB in the beginning and 27.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,013 INFO L168 Benchmark]: BuchiAutomizer took 3787.25 ms. Allocated memory was 47.2 MB in the beginning and 64.5 MB in the end (delta: 17.3 MB). Free memory was 27.9 MB in the beginning and 26.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:46,014 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 64.5 MB. Free memory is still 25.5 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:45:46,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 33.0 MB. Free memory was 9.9 MB in the beginning and 9.8 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 483.74 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 13.7 MB in the beginning and 21.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 61.42 ms. Allocated memory is still 44.0 MB. Free memory was 21.6 MB in the beginning and 18.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 36.38 ms. Allocated memory is still 44.0 MB. Free memory was 18.9 MB in the beginning and 16.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 635.82 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 16.8 MB in the beginning and 27.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3787.25 ms. Allocated memory was 47.2 MB in the beginning and 64.5 MB in the end (delta: 17.3 MB). Free memory was 27.9 MB in the beginning and 26.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 14.3 GB. * Witness Printer took 4.15 ms. Allocated memory is still 64.5 MB. Free memory is still 25.5 MB. There was no memory consumed. Max. memory is 14.3 GB. * 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 + 253 and consists of 3 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 + 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 3.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. 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, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 281 SDtfs, 248 SDslu, 27 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...