./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63437a4b9cab392a78c715a8db6f3cff5d71cf5 ........................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63437a4b9cab392a78c715a8db6f3cff5d71cf5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:25:35,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:35,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:35,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:35,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:35,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:35,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:35,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:35,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:35,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:35,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:35,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:35,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:35,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:35,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:35,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:35,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:35,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:35,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:35,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:35,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:35,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:35,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:35,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:35,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:35,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:35,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:35,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:35,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:35,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:35,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:35,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:35,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:35,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:35,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:35,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:35,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:35,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:35,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:35,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:35,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:35,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:25:35,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:35,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:35,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:35,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:35,328 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:35,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:35,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:35,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:25:35,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:35,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:35,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:35,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:35,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:35,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:35,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:35,331 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:35,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:35,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:35,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:35,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:35,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:35,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:35,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:35,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:35,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:35,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:25:35,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:25:35,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:35,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:35,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-10-24 23:25:35,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:35,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:35,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:35,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:35,872 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:35,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-10-24 23:25:35,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6045236/4eb478c31d994b929ca90394e35946a6/FLAG0ebe78060 [2020-10-24 23:25:36,588 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:36,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-10-24 23:25:36,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6045236/4eb478c31d994b929ca90394e35946a6/FLAG0ebe78060 [2020-10-24 23:25:36,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf6045236/4eb478c31d994b929ca90394e35946a6 [2020-10-24 23:25:36,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:36,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:36,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:36,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:36,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:36,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:36" (1/1) ... [2020-10-24 23:25:36,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3838fb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:36, skipping insertion in model container [2020-10-24 23:25:36,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:36" (1/1) ... [2020-10-24 23:25:36,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:36,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:37,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:37,289 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:37,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:37,374 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:37,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37 WrapperNode [2020-10-24 23:25:37,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:37,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:37,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:37,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:37,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:37,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:37,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:37,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:37,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:37,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:37,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:37,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:37,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:25:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:25:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:25:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:25:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:37,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:25:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:38,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:38,026 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:25:38,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:38 BoogieIcfgContainer [2020-10-24 23:25:38,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:38,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:38,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:38,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:38,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:36" (1/3) ... [2020-10-24 23:25:38,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318f9e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:38, skipping insertion in model container [2020-10-24 23:25:38,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (2/3) ... [2020-10-24 23:25:38,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318f9e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:38, skipping insertion in model container [2020-10-24 23:25:38,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:38" (3/3) ... [2020-10-24 23:25:38,039 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-10-24 23:25:38,052 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:38,061 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:38,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:38,132 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:38,132 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:38,133 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:38,133 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:38,133 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:38,134 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:38,134 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:38,134 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 23:25:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:25:38,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:38,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:38,163 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:38,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:38,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-10-24 23:25:38,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:38,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454367287] [2020-10-24 23:25:38,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:38,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454367287] [2020-10-24 23:25:38,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:38,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:25:38,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868429647] [2020-10-24 23:25:38,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:38,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:25:38,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:38,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:38,438 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 23:25:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:38,465 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-24 23:25:38,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:38,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:25:38,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:38,483 INFO L225 Difference]: With dead ends: 49 [2020-10-24 23:25:38,484 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:25:38,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:25:38,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:25:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:25:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-10-24 23:25:38,527 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-10-24 23:25:38,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:38,527 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-10-24 23:25:38,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:38,527 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-10-24 23:25:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:38,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:38,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:38,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:25:38,529 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:38,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:38,530 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-10-24 23:25:38,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:38,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020536276] [2020-10-24 23:25:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:38,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:38,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:38,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:25:38,701 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:25:38,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:25:38,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:38 BoogieIcfgContainer [2020-10-24 23:25:38,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:38,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:38,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:38,744 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:38,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:38" (3/4) ... [2020-10-24 23:25:38,749 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:25:38,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:38,752 INFO L168 Benchmark]: Toolchain (without parser) took 1832.47 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 22.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:38,753 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:38,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.80 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 35.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:38,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.02 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 34.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:38,756 INFO L168 Benchmark]: Boogie Preprocessor took 78.67 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 32.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:38,757 INFO L168 Benchmark]: RCFGBuilder took 483.21 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: 3.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:38,758 INFO L168 Benchmark]: TraceAbstraction took 712.77 ms. Allocated memory is still 54.5 MB. Free memory was 28.8 MB in the beginning and 23.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:38,759 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 54.5 MB. Free memory was 23.0 MB in the beginning and 22.7 MB in the end (delta: 304.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:38,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 447.80 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 35.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.02 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 34.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.67 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 32.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 483.21 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: 3.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 712.77 ms. Allocated memory is still 54.5 MB. Free memory was 28.8 MB in the beginning and 23.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.44 ms. Allocated memory is still 54.5 MB. Free memory was 23.0 MB in the beginning and 22.7 MB in the end (delta: 304.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 25, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = -0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1032b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:25:41,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:41,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:41,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:41,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:41,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:41,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:41,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:41,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:41,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:41,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:41,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:41,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:41,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:41,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:41,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:41,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:41,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:41,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:41,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:41,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:41,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:41,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:41,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:41,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:41,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:41,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:41,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:41,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:41,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:41,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:41,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:41,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:41,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:41,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:41,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:41,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:41,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:41,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:41,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:41,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:41,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:25:41,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:41,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:41,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:41,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:41,506 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:41,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:41,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:41,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:41,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:41,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:41,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:41,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:41,509 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:25:41,510 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:25:41,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:41,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:41,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:41,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:41,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:41,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:41,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:41,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:41,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:41,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:41,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:41,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:41,513 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:25:41,513 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:25:41,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:41,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:41,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:25:41,514 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-10-24 23:25:41,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:42,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:42,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:42,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:42,019 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:42,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-10-24 23:25:42,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6696b90e5/739b68cff696477fb78f51a82d41b517/FLAG84e8e78c1 [2020-10-24 23:25:42,780 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:42,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-10-24 23:25:42,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6696b90e5/739b68cff696477fb78f51a82d41b517/FLAG84e8e78c1 [2020-10-24 23:25:43,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6696b90e5/739b68cff696477fb78f51a82d41b517 [2020-10-24 23:25:43,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:43,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:43,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:43,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:43,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:43,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487e456e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43, skipping insertion in model container [2020-10-24 23:25:43,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:43,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:43,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:43,441 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:43,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:43,492 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:43,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43 WrapperNode [2020-10-24 23:25:43,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:43,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:43,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:43,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:43,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:43,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:43,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:43,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:43,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (1/1) ... [2020-10-24 23:25:43,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:43,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:43,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:43,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:43,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:25:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:25:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:25:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:25:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:25:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:44,086 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:44,086 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:25:44,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:44 BoogieIcfgContainer [2020-10-24 23:25:44,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:44,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:44,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:44,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:44,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:43" (1/3) ... [2020-10-24 23:25:44,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa83b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:44, skipping insertion in model container [2020-10-24 23:25:44,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:43" (2/3) ... [2020-10-24 23:25:44,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa83b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:44, skipping insertion in model container [2020-10-24 23:25:44,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:44" (3/3) ... [2020-10-24 23:25:44,100 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-10-24 23:25:44,114 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:44,119 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:44,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:44,171 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:44,171 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:44,171 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:44,171 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:44,171 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:44,172 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:44,172 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:44,172 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 23:25:44,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:25:44,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:44,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:44,195 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:44,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:44,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-10-24 23:25:44,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:44,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632370910] [2020-10-24 23:25:44,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:25:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:44,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:25:44,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:44,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:44,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632370910] [2020-10-24 23:25:44,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:44,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:25:44,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165939070] [2020-10-24 23:25:44,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:44,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:44,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:44,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:44,453 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 23:25:44,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:44,487 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-24 23:25:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:44,489 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:25:44,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:44,503 INFO L225 Difference]: With dead ends: 49 [2020-10-24 23:25:44,503 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:25:44,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:44,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:25:44,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:25:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:25:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-10-24 23:25:44,568 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-10-24 23:25:44,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:44,570 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-10-24 23:25:44,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-10-24 23:25:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:44,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:44,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:44,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:25:44,787 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:44,790 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-10-24 23:25:44,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:44,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793657328] [2020-10-24 23:25:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:25:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:44,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:25:44,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:44,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:45,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:45,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793657328] [2020-10-24 23:25:45,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:45,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:25:45,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091185136] [2020-10-24 23:25:45,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:25:45,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:45,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:25:45,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:25:45,069 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-10-24 23:25:45,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:45,185 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-10-24 23:25:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:25:45,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 23:25:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:45,187 INFO L225 Difference]: With dead ends: 34 [2020-10-24 23:25:45,187 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 23:25:45,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:25:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 23:25:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 23:25:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 23:25:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-24 23:25:45,194 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-10-24 23:25:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:45,194 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-24 23:25:45,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:25:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-24 23:25:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:25:45,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:45,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:45,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:25:45,412 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:45,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:45,413 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-10-24 23:25:45,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:45,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612678961] [2020-10-24 23:25:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:25:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:45,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 23:25:45,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:45,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:45,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612678961] [2020-10-24 23:25:45,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:45,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-24 23:25:45,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979022534] [2020-10-24 23:25:45,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 23:25:45,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:45,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 23:25:45,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:25:45,693 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-10-24 23:25:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:45,903 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-24 23:25:45,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:25:45,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-24 23:25:45,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:45,905 INFO L225 Difference]: With dead ends: 23 [2020-10-24 23:25:45,905 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 23:25:45,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:25:45,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 23:25:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 23:25:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 23:25:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-10-24 23:25:45,911 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-10-24 23:25:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:45,911 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-10-24 23:25:45,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 23:25:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-10-24 23:25:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 23:25:45,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:45,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:46,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:25:46,114 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:46,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:46,115 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-10-24 23:25:46,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:46,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506968473] [2020-10-24 23:25:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:25:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:46,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-24 23:25:46,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:46,295 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:25:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:46,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:46,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506968473] [2020-10-24 23:25:46,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:46,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2020-10-24 23:25:46,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130881743] [2020-10-24 23:25:46,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-24 23:25:46,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:46,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-24 23:25:46,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-24 23:25:46,767 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2020-10-24 23:25:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:47,054 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-10-24 23:25:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 23:25:47,055 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-10-24 23:25:47,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:47,055 INFO L225 Difference]: With dead ends: 20 [2020-10-24 23:25:47,055 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:25:47,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-10-24 23:25:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:25:47,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:25:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:25:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:25:47,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-24 23:25:47,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:47,057 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:25:47,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-24 23:25:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:25:47,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:25:47,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:25:47,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:25:47,551 INFO L274 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-10-24 23:25:47,551 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-10-24 23:25:47,551 INFO L270 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) |ULTIMATE.start_main_#t~short15|)) [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-10-24 23:25:47,552 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:25:47,552 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L277 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-10-24 23:25:47,553 INFO L274 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-10-24 23:25:47,554 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-10-24 23:25:47,554 INFO L270 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short15|)) [2020-10-24 23:25:47,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:25:47,554 INFO L270 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2020-10-24 23:25:47,554 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-10-24 23:25:47,555 INFO L274 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-10-24 23:25:47,555 INFO L274 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-10-24 23:25:47,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:47 BoogieIcfgContainer [2020-10-24 23:25:47,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:47,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:47,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:47,583 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:47,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:44" (3/4) ... [2020-10-24 23:25:47,588 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:25:47,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 23:25:47,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 23:25:47,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 23:25:47,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:47,634 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:47,635 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-10-24 23:25:47,635 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-10-24 23:25:47,666 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:25:47,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:47,674 INFO L168 Benchmark]: Toolchain (without parser) took 4549.67 ms. Allocated memory was 46.1 MB in the beginning and 79.7 MB in the end (delta: 33.6 MB). Free memory was 22.8 MB in the beginning and 54.4 MB in the end (delta: -31.7 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:47,677 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 46.1 MB. Free memory was 27.8 MB in the beginning and 27.8 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:47,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.45 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 22.7 MB in the end (delta: -565.0 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:47,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 21.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:47,680 INFO L168 Benchmark]: Boogie Preprocessor took 55.48 ms. Allocated memory is still 46.1 MB. Free memory was 21.0 MB in the beginning and 19.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:47,681 INFO L168 Benchmark]: RCFGBuilder took 488.69 ms. Allocated memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: 18.9 MB). Free memory was 19.4 MB in the beginning and 47.9 MB in the end (delta: -28.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:47,682 INFO L168 Benchmark]: TraceAbstraction took 3492.00 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 47.4 MB in the beginning and 58.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:47,682 INFO L168 Benchmark]: Witness Printer took 83.13 ms. Allocated memory is still 79.7 MB. Free memory was 58.0 MB in the beginning and 54.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:47,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 46.1 MB. Free memory was 27.8 MB in the beginning and 27.8 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.45 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 22.7 MB in the end (delta: -565.0 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 21.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.48 ms. Allocated memory is still 46.1 MB. Free memory was 21.0 MB in the beginning and 19.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 488.69 ms. Allocated memory was 46.1 MB in the beginning and 65.0 MB in the end (delta: 18.9 MB). Free memory was 19.4 MB in the beginning and 47.9 MB in the end (delta: -28.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3492.00 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 47.4 MB in the beginning and 58.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Witness Printer took 83.13 ms. Allocated memory is still 79.7 MB. Free memory was 58.0 MB in the beginning and 54.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 60]: Loop Invariant [2020-10-24 23:25:47,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 14]: Loop Invariant [2020-10-24 23:25:47,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant [2020-10-24 23:25:47,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:47,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...