./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0480.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 bd6800513a0c85eb15605681f4c7c21ff95d3a8c ........................................................................................................................................................................................................................................................................................................ 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_0480.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 bd6800513a0c85eb15605681f4c7c21ff95d3a8c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:54:52,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:54:52,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:54:52,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:54:52,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:54:52,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:54:52,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:54:52,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:54:52,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:54:52,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:54:52,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:54:52,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:54:52,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:54:52,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:54:52,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:54:52,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:54:52,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:54:52,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:54:52,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:54:52,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:54:52,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:54:52,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:54:52,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:54:52,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:54:52,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:54:52,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:54:52,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:54:52,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:54:52,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:54:52,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:54:52,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:54:52,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:54:52,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:54:52,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:54:52,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:54:52,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:54:52,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:54:52,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:54:52,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:54:52,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:54:52,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:54:52,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:54:52,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:54:52,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:54:52,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:54:52,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:54:52,418 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:54:52,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:54:52,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:54:52,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:54:52,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:54:52,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:54:52,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:54:52,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:54:52,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:54:52,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:54:52,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:54:52,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:54:52,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:54:52,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:54:52,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:54:52,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:54:52,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:54:52,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:54:52,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:54:52,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:54:52,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:54:52,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:54:52,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:54:52,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:54:52,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:54:52,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-10-25 21:54:52,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:54:52,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:54:52,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:54:52,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:54:52,859 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:54:52,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-25 21:54:52,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88022ae81/ddaf7b52ff08465f8b60af0551630ceb/FLAGb66b3038e [2020-10-25 21:54:53,543 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:54:53,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-25 21:54:53,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88022ae81/ddaf7b52ff08465f8b60af0551630ceb/FLAGb66b3038e [2020-10-25 21:54:53,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88022ae81/ddaf7b52ff08465f8b60af0551630ceb [2020-10-25 21:54:53,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:54:53,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:54:53,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:54:53,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:54:53,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:54:53,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:54:53" (1/1) ... [2020-10-25 21:54:53,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cbe5f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:53, skipping insertion in model container [2020-10-25 21:54:53,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:54:53" (1/1) ... [2020-10-25 21:54:53,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:54:54,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:54:54,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:54:54,288 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:54:54,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:54:54,400 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:54:54,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54 WrapperNode [2020-10-25 21:54:54,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:54:54,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:54:54,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:54:54,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:54:54,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:54:54,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:54:54,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:54:54,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:54:54,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (1/1) ... [2020-10-25 21:54:54,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:54:54,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:54:54,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:54:54,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:54:54,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (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 [2020-10-25 21:54:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:54:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:54:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:54:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:54:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:54:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:54:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:54:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:54:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:54:55,414 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:54:55,415 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-25 21:54:55,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:54:55 BoogieIcfgContainer [2020-10-25 21:54:55,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:54:55,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:54:55,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:54:55,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:54:55,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:54:53" (1/3) ... [2020-10-25 21:54:55,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1222baae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:54:55, skipping insertion in model container [2020-10-25 21:54:55,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:54:54" (2/3) ... [2020-10-25 21:54:55,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1222baae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:54:55, skipping insertion in model container [2020-10-25 21:54:55,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:54:55" (3/3) ... [2020-10-25 21:54:55,427 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-10-25 21:54:55,447 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:54:55,454 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:54:55,469 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:54:55,500 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:54:55,501 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:54:55,501 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:54:55,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:54:55,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:54:55,501 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:54:55,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:54:55,501 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:54:55,520 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-25 21:54:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:54:55,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:54:55,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:54:55,527 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:54:55,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:54:55,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-10-25 21:54:55,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:54:55,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646298831] [2020-10-25 21:54:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:54:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:54:55,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:54:55,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646298831] [2020-10-25 21:54:55,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:54:55,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:54:55,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534373052] [2020-10-25 21:54:55,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:54:55,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:54:55,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:54:55,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:54:55,747 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-10-25 21:54:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:54:55,796 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-10-25 21:54:55,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:54:55,798 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 21:54:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:54:55,821 INFO L225 Difference]: With dead ends: 151 [2020-10-25 21:54:55,821 INFO L226 Difference]: Without dead ends: 73 [2020-10-25 21:54:55,826 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 [2020-10-25 21:54:55,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-25 21:54:55,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-25 21:54:55,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-25 21:54:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-10-25 21:54:55,872 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-10-25 21:54:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:54:55,872 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-25 21:54:55,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:54:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-10-25 21:54:55,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:54:55,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:54:55,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:54:55,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:54:55,874 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:54:55,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:54:55,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-10-25 21:54:55,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:54:55,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303366069] [2020-10-25 21:54:55,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:54:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:54:55,932 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:54:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:54:55,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:54:56,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:54:56,031 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:54:56,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:54:56,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:54:56 BoogieIcfgContainer [2020-10-25 21:54:56,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:54:56,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:54:56,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:54:56,112 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:54:56,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:54:55" (3/4) ... [2020-10-25 21:54:56,116 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:54:56,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:54:56,121 INFO L168 Benchmark]: Toolchain (without parser) took 2214.82 ms. Allocated memory was 39.8 MB in the beginning and 58.7 MB in the end (delta: 18.9 MB). Free memory was 16.8 MB in the beginning and 24.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:56,122 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 39.8 MB. Free memory was 21.5 MB in the beginning and 21.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:54:56,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.05 ms. Allocated memory is still 48.2 MB. Free memory was 33.7 MB in the beginning and 31.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:56,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.45 ms. Allocated memory is still 48.2 MB. Free memory was 31.5 MB in the beginning and 29.0 MB in the end (delta: 2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:54:56,125 INFO L168 Benchmark]: Boogie Preprocessor took 89.74 ms. Allocated memory is still 48.2 MB. Free memory was 28.9 MB in the beginning and 26.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:56,126 INFO L168 Benchmark]: RCFGBuilder took 856.78 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.6 MB in the beginning and 33.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:56,126 INFO L168 Benchmark]: TraceAbstraction took 691.72 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 25.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-10-25 21:54:56,127 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 58.7 MB. Free memory was 25.2 MB in the beginning and 24.8 MB in the end (delta: 354.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:54:56,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 39.8 MB. Free memory was 21.5 MB in the beginning and 21.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 467.05 ms. Allocated memory is still 48.2 MB. Free memory was 33.7 MB in the beginning and 31.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.45 ms. Allocated memory is still 48.2 MB. Free memory was 31.5 MB in the beginning and 29.0 MB in the end (delta: 2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.74 ms. Allocated memory is still 48.2 MB. Free memory was 28.9 MB in the beginning and 26.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 856.78 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.6 MB in the beginning and 33.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 691.72 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 25.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 58.7 MB. Free memory was 25.2 MB in the beginning and 24.8 MB in the end (delta: 354.2 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 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L179] float x = 1.0f; [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE hx > 0 [L103] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0480.c", 3, "reach_error") VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 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=77occurred 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 0.2.0-5485861 [2020-10-25 21:54:58,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:54:58,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:54:58,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-25 21:54:58,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:54:58,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:54:58,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:54:58,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:54:58,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:54:58,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:54:58,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:54:58,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:54:58,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:54:58,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:54:58,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:54:58,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:54:58,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-25 21:54:58,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:54:58,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:54:58,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:54:58,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:54:58,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:54:58,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:54:58,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:54:58,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:54:58,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:54:58,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:54:58,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:54:58,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:54:58,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:54:58,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:54:58,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:54:58,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:54:58,827 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:54:58,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:54:58,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:54:58,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:54:58,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:54:58,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:54:58,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:54:58,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:54:58,830 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:54:58,831 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:54:58,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:54:58,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:54:58,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:54:58,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:54:58,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:54:58,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:54:58,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:54:58,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:54:58,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:54:58,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:54:58,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:54:58,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:54:58,834 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:54:58,834 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:54:58,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:54:58,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:54:58,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:54:58,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-10-25 21:54:59,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:54:59,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:54:59,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:54:59,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:54:59,323 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:54:59,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-25 21:54:59,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62943415c/a5adaeec59ce4f54a7c2e06e29af0504/FLAGb6579550b [2020-10-25 21:55:00,156 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:55:00,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-25 21:55:00,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62943415c/a5adaeec59ce4f54a7c2e06e29af0504/FLAGb6579550b [2020-10-25 21:55:00,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62943415c/a5adaeec59ce4f54a7c2e06e29af0504 [2020-10-25 21:55:00,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:55:00,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:55:00,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:55:00,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:55:00,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:55:00,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:00,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2063f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00, skipping insertion in model container [2020-10-25 21:55:00,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:00,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:55:00,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:55:00,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:55:00,889 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:55:00,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:55:00,966 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:55:00,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00 WrapperNode [2020-10-25 21:55:00,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:55:00,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:55:00,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:55:00,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:55:00,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:55:01,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:55:01,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:55:01,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:55:01,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (1/1) ... [2020-10-25 21:55:01,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:55:01,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:55:01,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:55:01,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:55:01,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (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 [2020-10-25 21:55:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:55:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:55:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 21:55:01,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:55:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:55:01,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:55:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 21:55:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:55:01,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:55:12,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:55:12,809 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-25 21:55:12,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:55:12 BoogieIcfgContainer [2020-10-25 21:55:12,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:55:12,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:55:12,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:55:12,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:55:12,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:55:00" (1/3) ... [2020-10-25 21:55:12,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a248b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:55:12, skipping insertion in model container [2020-10-25 21:55:12,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:55:00" (2/3) ... [2020-10-25 21:55:12,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a248b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:55:12, skipping insertion in model container [2020-10-25 21:55:12,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:55:12" (3/3) ... [2020-10-25 21:55:12,831 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-10-25 21:55:12,850 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:55:12,858 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:55:12,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:55:12,910 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:55:12,910 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:55:12,911 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:55:12,911 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:55:12,911 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:55:12,911 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:55:12,911 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:55:12,912 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:55:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-25 21:55:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:55:12,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:55:12,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:55:12,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:55:12,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:55:12,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-10-25 21:55:12,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:55:12,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105768323] [2020-10-25 21:55:12,961 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 [2020-10-25 21:55:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:55:13,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:55:13,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:55:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:13,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:55:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:13,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105768323] [2020-10-25 21:55:13,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:55:13,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:55:13,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767697428] [2020-10-25 21:55:13,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:55:13,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:55:13,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:55:13,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:55:13,671 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-10-25 21:55:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:55:13,716 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-10-25 21:55:13,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:55:13,717 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 21:55:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:55:13,729 INFO L225 Difference]: With dead ends: 151 [2020-10-25 21:55:13,730 INFO L226 Difference]: Without dead ends: 73 [2020-10-25 21:55:13,734 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 [2020-10-25 21:55:13,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-25 21:55:13,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-25 21:55:13,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-25 21:55:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-10-25 21:55:13,782 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-10-25 21:55:13,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:55:13,783 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-25 21:55:13,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:55:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-10-25 21:55:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:55:13,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:55:13,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:55:13,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:55:13,999 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:55:14,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:55:14,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-10-25 21:55:14,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:55:14,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613255153] [2020-10-25 21:55:14,003 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 [2020-10-25 21:55:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:55:14,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-25 21:55:14,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:55:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:14,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:55:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:14,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613255153] [2020-10-25 21:55:14,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:55:14,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-10-25 21:55:14,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360970204] [2020-10-25 21:55:14,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 21:55:14,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:55:14,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 21:55:14,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 21:55:14,696 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2020-10-25 21:55:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:55:23,028 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2020-10-25 21:55:23,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:55:23,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-25 21:55:23,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:55:23,318 INFO L225 Difference]: With dead ends: 85 [2020-10-25 21:55:23,318 INFO L226 Difference]: Without dead ends: 82 [2020-10-25 21:55:23,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:55:23,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-25 21:55:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2020-10-25 21:55:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-25 21:55:23,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2020-10-25 21:55:23,331 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2020-10-25 21:55:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:55:23,332 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2020-10-25 21:55:23,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 21:55:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2020-10-25 21:55:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:55:23,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:55:23,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:55:23,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:55:23,535 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:55:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:55:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2020-10-25 21:55:23,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:55:23,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938184823] [2020-10-25 21:55:23,538 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 [2020-10-25 21:55:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:55:24,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-25 21:55:24,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:55:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:24,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:55:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:24,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938184823] [2020-10-25 21:55:24,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:55:24,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-25 21:55:24,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872787912] [2020-10-25 21:55:24,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:55:24,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:55:24,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:55:24,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:55:24,376 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand 6 states. [2020-10-25 21:55:27,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:55:27,991 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2020-10-25 21:55:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:55:28,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-25 21:55:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:55:28,166 INFO L225 Difference]: With dead ends: 93 [2020-10-25 21:55:28,167 INFO L226 Difference]: Without dead ends: 60 [2020-10-25 21:55:28,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 21:55:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-25 21:55:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2020-10-25 21:55:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-25 21:55:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2020-10-25 21:55:28,177 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2020-10-25 21:55:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:55:28,177 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2020-10-25 21:55:28,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:55:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2020-10-25 21:55:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:55:28,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:55:28,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:55:28,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:55:28,380 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:55:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:55:28,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2020-10-25 21:55:28,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:55:28,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489513122] [2020-10-25 21:55:28,383 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 [2020-10-25 21:55:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:55:29,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 21:55:29,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:55:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:29,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:55:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:29,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489513122] [2020-10-25 21:55:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:55:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 21:55:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70190639] [2020-10-25 21:55:29,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 21:55:29,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:55:29,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 21:55:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-25 21:55:29,356 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 8 states. [2020-10-25 21:55:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:55:29,485 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-10-25 21:55:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:55:29,486 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-25 21:55:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:55:29,487 INFO L225 Difference]: With dead ends: 58 [2020-10-25 21:55:29,487 INFO L226 Difference]: Without dead ends: 16 [2020-10-25 21:55:29,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:55:29,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-25 21:55:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-25 21:55:29,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-25 21:55:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-25 21:55:29,492 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-10-25 21:55:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:55:29,493 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-25 21:55:29,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 21:55:29,493 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-25 21:55:29,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 21:55:29,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:55:29,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:55:29,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 21:55:29,707 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:55:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:55:29,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2020-10-25 21:55:29,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:55:29,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285747460] [2020-10-25 21:55:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-25 21:55:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:55:30,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-25 21:55:30,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:55:30,363 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 21:55:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:30,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:55:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:55:30,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285747460] [2020-10-25 21:55:30,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:55:30,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-10-25 21:55:30,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550714222] [2020-10-25 21:55:30,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-25 21:55:30,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:55:30,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-25 21:55:30,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-25 21:55:30,710 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-10-25 21:55:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:55:31,091 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-25 21:55:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:55:31,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-10-25 21:55:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:55:31,092 INFO L225 Difference]: With dead ends: 16 [2020-10-25 21:55:31,092 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:55:31,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-25 21:55:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:55:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:55:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:55:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:55:31,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-25 21:55:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:55:31,095 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:55:31,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-25 21:55:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:55:31,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:55:31,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-25 21:55:31,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:55:31,556 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-25 21:55:31,636 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-10-25 21:55:31,636 INFO L274 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-10-25 21:55:31,636 INFO L270 CegarLoopResult]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2020-10-25 21:55:31,636 INFO L274 CegarLoopResult]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point L102(lines 102 105) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-10-25 21:55:31,637 INFO L274 CegarLoopResult]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2020-10-25 21:55:31,638 INFO L274 CegarLoopResult]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2020-10-25 21:55:31,638 INFO L274 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-10-25 21:55:31,638 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-10-25 21:55:31,639 INFO L274 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-10-25 21:55:31,639 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-10-25 21:55:31,639 INFO L274 CegarLoopResult]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2020-10-25 21:55:31,639 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-10-25 21:55:31,639 INFO L274 CegarLoopResult]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2020-10-25 21:55:31,639 INFO L274 CegarLoopResult]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2020-10-25 21:55:31,639 INFO L270 CegarLoopResult]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2020-10-25 21:55:31,639 INFO L274 CegarLoopResult]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2020-10-25 21:55:31,640 INFO L270 CegarLoopResult]: At program point L170(lines 161 171) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) (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)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-10-25 21:55:31,640 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-10-25 21:55:31,644 INFO L270 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-10-25 21:55:31,644 INFO L274 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-10-25 21:55:31,644 INFO L274 CegarLoopResult]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2020-10-25 21:55:31,644 INFO L270 CegarLoopResult]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2020-10-25 21:55:31,644 INFO L274 CegarLoopResult]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2020-10-25 21:55:31,645 INFO L274 CegarLoopResult]: For program point L121(lines 121 158) no Hoare annotation was computed. [2020-10-25 21:55:31,645 INFO L274 CegarLoopResult]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2020-10-25 21:55:31,645 INFO L270 CegarLoopResult]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2020-10-25 21:55:31,646 INFO L277 CegarLoopResult]: At program point L188(lines 173 189) the Hoare annotation is: true [2020-10-25 21:55:31,646 INFO L274 CegarLoopResult]: For program point L106(lines 106 108) no Hoare annotation was computed. [2020-10-25 21:55:31,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:55:31,646 INFO L270 CegarLoopResult]: At program point L157(lines 92 159) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32))) [2020-10-25 21:55:31,646 INFO L274 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-10-25 21:55:31,646 INFO L270 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-10-25 21:55:31,646 INFO L274 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L270 CegarLoopResult]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L109(lines 109 158) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L143(lines 143 147) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L110(lines 110 111) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L143-1(lines 133 158) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 147) no Hoare annotation was computed. [2020-10-25 21:55:31,647 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-25 21:55:31,648 INFO L274 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-10-25 21:55:31,648 INFO L274 CegarLoopResult]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2020-10-25 21:55:31,648 INFO L274 CegarLoopResult]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2020-10-25 21:55:31,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:55:31,649 INFO L274 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-10-25 21:55:31,649 INFO L274 CegarLoopResult]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2020-10-25 21:55:31,649 INFO L274 CegarLoopResult]: For program point L95-1(lines 95 99) no Hoare annotation was computed. [2020-10-25 21:55:31,650 INFO L270 CegarLoopResult]: At program point L95-2(lines 95 99) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) [2020-10-25 21:55:31,650 INFO L274 CegarLoopResult]: For program point L95-3(lines 95 99) no Hoare annotation was computed. [2020-10-25 21:55:31,650 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-10-25 21:55:31,650 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-10-25 21:55:31,650 INFO L270 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: false [2020-10-25 21:55:31,650 INFO L270 CegarLoopResult]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2020-10-25 21:55:31,650 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-10-25 21:55:31,650 INFO L274 CegarLoopResult]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2020-10-25 21:55:31,650 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 168) no Hoare annotation was computed. [2020-10-25 21:55:31,651 INFO L270 CegarLoopResult]: At program point L164-2(lines 164 168) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-10-25 21:55:31,651 INFO L274 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-10-25 21:55:31,652 INFO L274 CegarLoopResult]: For program point L164-3(lines 164 168) no Hoare annotation was computed. [2020-10-25 21:55:31,652 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:55:31,652 INFO L274 CegarLoopResult]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2020-10-25 21:55:31,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:55:31,653 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-25 21:55:31,653 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2020-10-25 21:55:31,653 INFO L274 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-10-25 21:55:31,653 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2020-10-25 21:55:31,653 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 21:55:31,653 INFO L274 CegarLoopResult]: For program point L183-2(lines 183 186) no Hoare annotation was computed. [2020-10-25 21:55:31,654 INFO L274 CegarLoopResult]: For program point L101(lines 101 108) no Hoare annotation was computed. [2020-10-25 21:55:31,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,697 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:55:31 BoogieIcfgContainer [2020-10-25 21:55:31,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:55:31,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:55:31,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:55:31,711 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:55:31,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:55:12" (3/4) ... [2020-10-25 21:55:31,716 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:55:31,745 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-10-25 21:55:31,746 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-25 21:55:31,750 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:55:31,751 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:55:31,786 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) [2020-10-25 21:55:31,787 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 [2020-10-25 21:55:31,789 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-25 21:55:31,792 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-25 21:55:31,900 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:55:31,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:55:31,907 INFO L168 Benchmark]: Toolchain (without parser) took 31385.56 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 36.9 MB in the end (delta: -9.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,907 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 50.3 MB. Free memory is still 27.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:55:31,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.80 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 23.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.2 MB in the beginning and 42.8 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,909 INFO L168 Benchmark]: Boogie Preprocessor took 109.91 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 40.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,909 INFO L168 Benchmark]: RCFGBuilder took 11657.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 32.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,910 INFO L168 Benchmark]: TraceAbstraction took 18892.80 ms. Allocated memory is still 60.8 MB. Free memory was 32.0 MB in the beginning and 21.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,910 INFO L168 Benchmark]: Witness Printer took 189.83 ms. Allocated memory is still 60.8 MB. Free memory was 21.8 MB in the beginning and 36.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:55:31,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 50.3 MB. Free memory is still 27.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.80 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 23.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.2 MB in the beginning and 42.8 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.91 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 40.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11657.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 32.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18892.80 ms. Allocated memory is still 60.8 MB. Free memory was 32.0 MB in the beginning and 21.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 189.83 ms. Allocated memory is still 60.8 MB. Free memory was 21.8 MB in the beginning and 36.9 MB in the end (delta: -15.1 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant [2020-10-25 21:55:31,922 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,922 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,922 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,923 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,923 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 - InvariantResult [Line: 95]: Loop Invariant [2020-10-25 21:55:31,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2020-10-25 21:55:31,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,930 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 164]: Loop Invariant [2020-10-25 21:55:31,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:55:31,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 226 SDslu, 275 SDs, 0 SdLazy, 42 SolverSat, 11 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 149 HoareAnnotationTreeSize, 16 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 4012 SizeOfPredicates, 29 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...