./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.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 9c532f6b804ad7a925ea1538a844c05d7db150e0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:27:53,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:27:53,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:27:54,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:27:54,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:27:54,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:27:54,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:27:54,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:27:54,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:27:54,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:27:54,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:27:54,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:27:54,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:27:54,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:27:54,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:27:54,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:27:54,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:27:54,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:27:54,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:27:54,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:27:54,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:27:54,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:27:54,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:27:54,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:27:54,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:27:54,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:27:54,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:27:54,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:27:54,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:27:54,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:27:54,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:27:54,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:27:54,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:27:54,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:27:54,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:27:54,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:27:54,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:27:54,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:27:54,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:27:54,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:27:54,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:27:54,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:27:54,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:27:54,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:27:54,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:27:54,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:27:54,189 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:27:54,189 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:27:54,189 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:27:54,190 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:27:54,190 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:27:54,190 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:27:54,191 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:27:54,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:27:54,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:27:54,192 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:27:54,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:27:54,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:27:54,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:27:54,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:27:54,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:27:54,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:27:54,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:27:54,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:27:54,195 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:27:54,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:27:54,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:27:54,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:27:54,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:27:54,196 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:27:54,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:27:54,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:27:54,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:27:54,197 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:27:54,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:27:54,200 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c532f6b804ad7a925ea1538a844c05d7db150e0 [2020-10-26 04:27:54,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:27:54,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:27:54,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:27:54,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:27:54,701 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:27:54,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2020-10-26 04:27:54,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c79ae3e/636384d4ef2a40e6a82a9a9e644d8b93/FLAG6c17d08d3 [2020-10-26 04:27:55,354 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:27:55,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2020-10-26 04:27:55,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c79ae3e/636384d4ef2a40e6a82a9a9e644d8b93/FLAG6c17d08d3 [2020-10-26 04:27:55,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c79ae3e/636384d4ef2a40e6a82a9a9e644d8b93 [2020-10-26 04:27:55,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:27:55,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:27:55,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:27:55,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:27:55,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:27:55,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:27:55" (1/1) ... [2020-10-26 04:27:55,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d99e8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:55, skipping insertion in model container [2020-10-26 04:27:55,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:27:55" (1/1) ... [2020-10-26 04:27:55,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:27:55,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:27:56,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:27:56,150 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:27:56,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:27:56,280 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:27:56,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56 WrapperNode [2020-10-26 04:27:56,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:27:56,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:27:56,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:27:56,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:27:56,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:27:56,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:27:56,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:27:56,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:27:56,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (1/1) ... [2020-10-26 04:27:56,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:27:56,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:27:56,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:27:56,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:27:56,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (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 [2020-10-26 04:27:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:27:56,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:27:56,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:27:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:27:57,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:27:57,217 INFO L298 CfgBuilder]: Removed 40 assume(true) statements. [2020-10-26 04:27:57,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:27:57 BoogieIcfgContainer [2020-10-26 04:27:57,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:27:57,221 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:27:57,221 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:27:57,225 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:27:57,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:27:57,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:27:55" (1/3) ... [2020-10-26 04:27:57,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e3835c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:27:57, skipping insertion in model container [2020-10-26 04:27:57,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:27:57,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:27:56" (2/3) ... [2020-10-26 04:27:57,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e3835c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:27:57, skipping insertion in model container [2020-10-26 04:27:57,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:27:57,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:27:57" (3/3) ... [2020-10-26 04:27:57,230 INFO L373 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2020-10-26 04:27:57,280 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:27:57,281 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:27:57,281 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:27:57,281 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:27:57,281 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:27:57,281 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:27:57,281 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:27:57,281 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:27:57,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states. [2020-10-26 04:27:57,325 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-10-26 04:27:57,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:27:57,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:27:57,333 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:27:57,333 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:27:57,333 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:27:57,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states. [2020-10-26 04:27:57,341 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-10-26 04:27:57,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:27:57,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:27:57,342 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:27:57,342 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:27:57,350 INFO L794 eck$LassoCheckResult]: Stem: 40#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); 14#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_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 42#L22true assume !(0 == base2flt_~m % 4294967296); 69#L28true assume !(base2flt_~m % 4294967296 < 16777216); 63#L50-2true [2020-10-26 04:27:57,351 INFO L796 eck$LassoCheckResult]: Loop: 63#L50-2true assume !false; 11#L51true assume base2flt_~m % 4294967296 >= 33554432; 38#L52true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 63#L50-2true [2020-10-26 04:27:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:57,358 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2020-10-26 04:27:57,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:57,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123912114] [2020-10-26 04:27:57,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:27:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:27:57,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123912114] [2020-10-26 04:27:57,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:27:57,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:27:57,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451682463] [2020-10-26 04:27:57,579 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:27:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:57,580 INFO L82 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2020-10-26 04:27:57,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:57,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935323993] [2020-10-26 04:27:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:57,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:57,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:57,626 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:57,678 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:27:57,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:27:57,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:27:57,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:27:57,680 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:27:57,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:57,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:27:57,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:27:57,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2020-10-26 04:27:57,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:27:57,681 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:27:57,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:57,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:57,855 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:27:57,856 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:57,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:27:57,893 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-26 04:27:57,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:27:57,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:27:58,031 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:27:58,034 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:27:58,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:27:58,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:27:58,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:27:58,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:27:58,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:58,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:27:58,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:27:58,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2020-10-26 04:27:58,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:27:58,035 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:27:58,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:58,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:58,145 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:27:58,151 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:58,165 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 [2020-10-26 04:27:58,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:27:58,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:27:58,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:27:58,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:27:58,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:27:58,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:27:58,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:27:58,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:27:58,192 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:27:58,193 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 [2020-10-26 04:27:58,202 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:27:58,203 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:27:58,204 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:27:58,204 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2020-10-26 04:27:58,231 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:27:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:27:58,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:27:58,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:27:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:27:58,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:27:58,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:27:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:27:58,325 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 [2020-10-26 04:27:58,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states. Second operand 3 states. [2020-10-26 04:27:58,410 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states.. Second operand 3 states. Result 237 states and 365 transitions. Complement of second has 6 states. [2020-10-26 04:27:58,411 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 [2020-10-26 04:27:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:27:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2020-10-26 04:27:58,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 237 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-26 04:27:58,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:27:58,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 237 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-26 04:27:58,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:27:58,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 237 transitions. Stem has 4 letters. Loop has 6 letters. [2020-10-26 04:27:58,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:27:58,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 237 states and 365 transitions. [2020-10-26 04:27:58,434 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2020-10-26 04:27:58,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 237 states to 57 states and 82 transitions. [2020-10-26 04:27:58,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2020-10-26 04:27:58,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-10-26 04:27:58,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2020-10-26 04:27:58,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:27:58,444 INFO L691 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-10-26 04:27:58,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2020-10-26 04:27:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2020-10-26 04:27:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-26 04:27:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2020-10-26 04:27:58,480 INFO L714 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2020-10-26 04:27:58,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:27:58,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:27:58,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:27:58,486 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand 3 states. [2020-10-26 04:27:58,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:27:58,540 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-10-26 04:27:58,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:27:58,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2020-10-26 04:27:58,542 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-26 04:27:58,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2020-10-26 04:27:58,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-26 04:27:58,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-10-26 04:27:58,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-10-26 04:27:58,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:27:58,544 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-26 04:27:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-10-26 04:27:58,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-26 04:27:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-26 04:27:58,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2020-10-26 04:27:58,548 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-26 04:27:58,548 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-26 04:27:58,548 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:27:58,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2020-10-26 04:27:58,549 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-26 04:27:58,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:27:58,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:27:58,550 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:27:58,550 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:27:58,551 INFO L794 eck$LassoCheckResult]: Stem: 456#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); 454#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_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 455#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 451#L72 base2flt_#res := base2flt_~__retres4~0; 452#L73 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; 453#L22-1 assume !(0 == base2flt_~m % 4294967296); 438#L28-1 assume !(base2flt_~m % 4294967296 < 16777216); 439#L50-5 [2020-10-26 04:27:58,551 INFO L796 eck$LassoCheckResult]: Loop: 439#L50-5 assume !false; 446#L51-1 assume base2flt_~m % 4294967296 >= 33554432; 447#L52-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 439#L50-5 [2020-10-26 04:27:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:58,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2020-10-26 04:27:58,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:58,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230033907] [2020-10-26 04:27:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:58,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:58,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:58,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:58,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:58,645 INFO L82 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2020-10-26 04:27:58,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:58,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79185833] [2020-10-26 04:27:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:58,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:58,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:58,685 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:58,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:58,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2020-10-26 04:27:58,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:58,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180111870] [2020-10-26 04:27:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:58,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:58,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:58,737 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:58,772 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:27:58,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:27:58,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:27:58,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:27:58,773 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:27:58,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:58,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:27:58,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:27:58,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2020-10-26 04:27:58,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:27:58,773 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:27:58,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:58,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:58,871 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:27:58,871 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) [2020-10-26 04:27:58,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:27:58,877 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 [2020-10-26 04:27:58,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:27:58,920 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:58,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:27:58,933 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:58,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:27:58,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:27:59,007 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:27:59,009 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:27:59,009 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:27:59,010 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:27:59,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:27:59,010 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:27:59,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,010 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:27:59,010 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:27:59,010 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2020-10-26 04:27:59,010 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:27:59,010 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:27:59,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:59,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:59,141 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:27:59,142 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) [2020-10-26 04:27:59,148 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 [2020-10-26 04:27:59,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:27:59,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:27:59,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:27:59,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:27:59,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:27:59,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:27:59,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,160 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) [2020-10-26 04:27:59,203 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 [2020-10-26 04:27:59,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:27:59,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:27:59,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:27:59,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:27:59,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:27:59,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:27:59,208 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 [2020-10-26 04:27:59,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:27:59,215 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:27:59,215 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) [2020-10-26 04:27:59,222 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:27:59,222 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:27:59,222 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:27:59,222 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 [2020-10-26 04:27:59,260 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:27:59,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:27:59,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:27:59,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:27:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:27:59,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:27:59,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:27:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:27:59,318 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 [2020-10-26 04:27:59,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-10-26 04:27:59,334 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. [2020-10-26 04:27:59,335 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 [2020-10-26 04:27:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:27:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2020-10-26 04:27:59,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-26 04:27:59,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:27:59,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-26 04:27:59,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:27:59,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-26 04:27:59,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:27:59,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2020-10-26 04:27:59,339 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2020-10-26 04:27:59,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2020-10-26 04:27:59,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2020-10-26 04:27:59,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2020-10-26 04:27:59,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2020-10-26 04:27:59,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:27:59,340 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-10-26 04:27:59,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2020-10-26 04:27:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2020-10-26 04:27:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-26 04:27:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-26 04:27:59,344 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 04:27:59,344 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 04:27:59,344 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:27:59,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-10-26 04:27:59,345 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-26 04:27:59,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:27:59,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:27:59,346 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:27:59,346 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:27:59,346 INFO L794 eck$LassoCheckResult]: Stem: 574#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); 572#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_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 573#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 568#L72 base2flt_#res := base2flt_~__retres4~0; 569#L73 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; 571#L22-1 assume !(0 == base2flt_~m % 4294967296); 553#L28-1 assume base2flt_~m % 4294967296 < 16777216; 551#L40-3 [2020-10-26 04:27:59,347 INFO L796 eck$LassoCheckResult]: Loop: 551#L40-3 assume !false; 552#L31-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 555#L40-2 assume base2flt_~m % 4294967296 < 16777216; 551#L40-3 [2020-10-26 04:27:59,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:59,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2020-10-26 04:27:59,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:59,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671566220] [2020-10-26 04:27:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:59,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:59,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:59,382 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:59,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:59,383 INFO L82 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2020-10-26 04:27:59,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:59,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64232959] [2020-10-26 04:27:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:59,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:59,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:59,394 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:27:59,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2020-10-26 04:27:59,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:27:59,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64625276] [2020-10-26 04:27:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:27:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:59,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:27:59,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:27:59,437 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:27:59,512 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:27:59,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:27:59,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:27:59,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:27:59,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:27:59,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:27:59,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:27:59,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2020-10-26 04:27:59,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:27:59,514 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:27:59,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:59,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:59,610 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:27:59,610 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 [2020-10-26 04:27:59,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:27:59,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:27:59,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:27:59,659 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:27:59,673 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2020-10-26 04:27:59,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:27:59,716 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 [2020-10-26 04:27:59,755 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:27:59,758 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:27:59,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:27:59,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:27:59,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:27:59,758 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:27:59,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:27:59,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:27:59,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2020-10-26 04:27:59,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:27:59,759 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:27:59,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:59,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:27:59,870 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:27:59,870 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) [2020-10-26 04:27:59,879 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 [2020-10-26 04:27:59,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:27:59,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:27:59,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:27:59,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:27:59,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:27:59,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:27:59,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,891 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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:27:59,937 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 [2020-10-26 04:27:59,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:27:59,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:27:59,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:27:59,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:27:59,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:27:59,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:27:59,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:27:59,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:27:59,950 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:27:59,950 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) [2020-10-26 04:27:59,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:27:59,958 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:27:59,958 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:27:59,958 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 [2020-10-26 04:27:59,995 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:28:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:28:00,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:28:00,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:28:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:28:00,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:28:00,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:28:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:28:00,138 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 [2020-10-26 04:28:00,138 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-10-26 04:28:00,154 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. [2020-10-26 04:28:00,165 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 [2020-10-26 04:28:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:28:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2020-10-26 04:28:00,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-26 04:28:00,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:00,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-26 04:28:00,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:00,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-26 04:28:00,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:00,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2020-10-26 04:28:00,168 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-10-26 04:28:00,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2020-10-26 04:28:00,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-10-26 04:28:00,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-10-26 04:28:00,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2020-10-26 04:28:00,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:28:00,177 INFO L691 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2020-10-26 04:28:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2020-10-26 04:28:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2020-10-26 04:28:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-26 04:28:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-10-26 04:28:00,183 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-26 04:28:00,183 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-26 04:28:00,184 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 04:28:00,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2020-10-26 04:28:00,187 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-26 04:28:00,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:28:00,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:28:00,188 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:28:00,188 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:28:00,188 INFO L794 eck$LassoCheckResult]: Stem: 700#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); 698#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_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 699#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 694#L72 base2flt_#res := base2flt_~__retres4~0; 695#L73 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; 697#L22-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 685#L72-1 base2flt_#res := base2flt_~__retres4~0; 686#L73-1 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; 693#L22-2 assume !(0 == base2flt_~m % 4294967296); 671#L28-2 assume !(base2flt_~m % 4294967296 < 16777216); 672#L50-8 [2020-10-26 04:28:00,189 INFO L796 eck$LassoCheckResult]: Loop: 672#L50-8 assume !false; 683#L51-2 assume base2flt_~m % 4294967296 >= 33554432; 684#L52-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 672#L50-8 [2020-10-26 04:28:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2020-10-26 04:28:00,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:28:00,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304513876] [2020-10-26 04:28:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:28:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:28:00,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,232 INFO L82 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2020-10-26 04:28:00,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:28:00,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045010737] [2020-10-26 04:28:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:28:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:28:00,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,261 INFO L82 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2020-10-26 04:28:00,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:28:00,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615473109] [2020-10-26 04:28:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:28:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,339 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:28:00,373 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:28:00,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:28:00,373 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:28:00,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:28:00,374 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:28:00,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:00,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:28:00,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:28:00,374 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2020-10-26 04:28:00,374 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:28:00,374 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:28:00,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:00,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:00,479 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:28:00,479 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) [2020-10-26 04:28:00,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:28:00,484 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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:00,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:28:00,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:28:00,552 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:28:00,554 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:28:00,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:28:00,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:28:00,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:28:00,554 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:28:00,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:00,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:28:00,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:28:00,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2020-10-26 04:28:00,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:28:00,555 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:28:00,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:00,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:00,665 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:28:00,667 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 [2020-10-26 04:28:00,679 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 [2020-10-26 04:28:00,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:28:00,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:28:00,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:28:00,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:28:00,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:28:00,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:28:00,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:28:00,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:28:00,693 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:28:00,693 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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:00,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:28:00,698 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:28:00,699 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:28:00,699 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2020-10-26 04:28:00,732 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:28:00,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:28:00,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:28:00,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:28:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:28:00,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:28:00,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:28:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:28:00,844 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 [2020-10-26 04:28:00,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-10-26 04:28:00,855 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. [2020-10-26 04:28:00,856 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 [2020-10-26 04:28:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:28:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-10-26 04:28:00,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-26 04:28:00,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:00,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-26 04:28:00,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:00,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-26 04:28:00,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:00,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2020-10-26 04:28:00,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:28:00,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2020-10-26 04:28:00,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-26 04:28:00,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-26 04:28:00,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-10-26 04:28:00,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:28:00,862 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 04:28:00,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-10-26 04:28:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-26 04:28:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-26 04:28:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-26 04:28:00,865 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 04:28:00,865 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 04:28:00,865 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 04:28:00,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-10-26 04:28:00,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:28:00,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:28:00,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:28:00,867 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:28:00,867 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:28:00,867 INFO L794 eck$LassoCheckResult]: Stem: 818#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); 816#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_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;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_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;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; 817#L22 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 811#L72 base2flt_#res := base2flt_~__retres4~0; 812#L73 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; 815#L22-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 803#L72-1 base2flt_#res := base2flt_~__retres4~0; 804#L73-1 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; 813#L22-2 assume !(0 == base2flt_~m % 4294967296); 792#L28-2 assume base2flt_~m % 4294967296 < 16777216; 793#L40-5 [2020-10-26 04:28:00,867 INFO L796 eck$LassoCheckResult]: Loop: 793#L40-5 assume !false; 809#L31-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 810#L40-4 assume base2flt_~m % 4294967296 < 16777216; 793#L40-5 [2020-10-26 04:28:00,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2020-10-26 04:28:00,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:28:00,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297474177] [2020-10-26 04:28:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:28:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:28:00,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,905 INFO L82 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2020-10-26 04:28:00,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:28:00,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461682081] [2020-10-26 04:28:00,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:28:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:28:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:00,916 INFO L82 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2020-10-26 04:28:00,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:28:00,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482923447] [2020-10-26 04:28:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:28:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:28:00,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:28:00,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:28:00,975 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:28:00,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:28:00,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:28:00,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:28:00,976 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:28:00,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:00,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:28:00,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:28:00,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2020-10-26 04:28:00,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:28:00,976 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:28:00,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:00,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:01,058 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:28:01,058 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) [2020-10-26 04:28:01,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:28:01,062 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) [2020-10-26 04:28:01,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:28:01,099 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 [2020-10-26 04:28:01,136 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:28:01,138 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:28:01,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:28:01,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:28:01,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:28:01,139 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:28:01,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:01,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:28:01,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:28:01,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2020-10-26 04:28:01,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:28:01,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:28:01,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:01,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:28:01,229 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:28:01,230 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) [2020-10-26 04:28:01,242 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 [2020-10-26 04:28:01,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:28:01,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:28:01,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:28:01,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:28:01,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:28:01,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:28:01,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:28:01,250 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:28:01,255 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:28:01,256 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) [2020-10-26 04:28:01,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:28:01,271 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:28:01,271 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:28:01,271 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 [2020-10-26 04:28:01,298 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:28:01,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:28:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:28:01,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:28:01,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:28:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:28:01,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:28:01,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:28:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:28:01,388 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 [2020-10-26 04:28:01,389 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-26 04:28:01,402 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. [2020-10-26 04:28:01,403 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 [2020-10-26 04:28:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:28:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-10-26 04:28:01,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-26 04:28:01,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:01,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-26 04:28:01,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:01,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-26 04:28:01,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:28:01,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-10-26 04:28:01,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:28:01,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-10-26 04:28:01,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:28:01,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:28:01,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:28:01,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:28:01,407 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:28:01,407 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:28:01,407 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:28:01,407 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 04:28:01,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:28:01,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:28:01,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:28:01,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:28:01 BoogieIcfgContainer [2020-10-26 04:28:01,418 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:28:01,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:28:01,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:28:01,419 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:28:01,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:27:57" (3/4) ... [2020-10-26 04:28:01,424 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:28:01,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:28:01,428 INFO L168 Benchmark]: Toolchain (without parser) took 5707.71 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 33.4 MB in the beginning and 49.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:28:01,430 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 26.1 MB in the beginning and 26.0 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:28:01,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.66 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 29.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:28:01,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.62 ms. Allocated memory is still 54.5 MB. Free memory was 29.2 MB in the beginning and 27.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:28:01,433 INFO L168 Benchmark]: Boogie Preprocessor took 63.90 ms. Allocated memory is still 54.5 MB. Free memory was 27.0 MB in the beginning and 38.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:28:01,434 INFO L168 Benchmark]: RCFGBuilder took 812.04 ms. Allocated memory is still 54.5 MB. Free memory was 38.5 MB in the beginning and 30.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:28:01,435 INFO L168 Benchmark]: BuchiAutomizer took 4197.56 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 30.2 MB in the beginning and 49.9 MB in the end (delta: -19.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:28:01,436 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 83.9 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:28:01,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 26.1 MB in the beginning and 26.0 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 545.66 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 29.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.62 ms. Allocated memory is still 54.5 MB. Free memory was 29.2 MB in the beginning and 27.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.90 ms. Allocated memory is still 54.5 MB. Free memory was 27.0 MB in the beginning and 38.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 812.04 ms. Allocated memory is still 54.5 MB. Free memory was 38.5 MB in the beginning and 30.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4197.56 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 30.2 MB in the beginning and 49.9 MB in the end (delta: -19.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.12 ms. Allocated memory is still 83.9 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 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 4.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. 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: 257 SDtfs, 224 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: 51ms 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...