./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 887f0640b1b5afa2d39789f5b16e950cef616033 ............................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 887f0640b1b5afa2d39789f5b16e950cef616033 ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:03:19,167 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:19,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:19,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:19,186 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:19,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:19,191 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:19,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:19,200 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:19,202 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:19,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:19,205 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:19,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:19,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:19,208 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:19,209 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:19,210 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:19,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:19,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:19,216 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:19,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:19,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:19,221 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:19,221 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:19,221 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:19,222 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:19,223 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:19,224 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:19,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:19,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:19,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:19,227 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:19,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:19,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:19,228 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:19,229 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:19,230 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:19,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:19,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:19,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:19,258 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:19,259 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:19,261 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:19,261 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:19,261 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:19,261 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:19,261 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:19,262 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:19,263 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:19,263 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:19,263 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:19,263 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:19,263 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:19,263 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:19,264 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:19,264 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:19,264 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:19,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:19,264 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:19,265 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:19,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:19,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:19,268 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:19,269 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:19,269 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:19,269 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:19,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:19,269 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2018-11-28 18:03:19,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:19,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:19,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:19,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:19,366 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:19,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-28 18:03:19,442 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4028d4595/fe611187d92a47708cb6cc67f69c6fb7/FLAG1a0e54b0b [2018-11-28 18:03:19,926 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:19,927 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-28 18:03:19,935 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4028d4595/fe611187d92a47708cb6cc67f69c6fb7/FLAG1a0e54b0b [2018-11-28 18:03:20,312 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4028d4595/fe611187d92a47708cb6cc67f69c6fb7 [2018-11-28 18:03:20,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:20,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:20,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:20,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:20,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:20,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d7b747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20, skipping insertion in model container [2018-11-28 18:03:20,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:20,360 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:20,627 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:20,634 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:20,661 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:20,694 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:20,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20 WrapperNode [2018-11-28 18:03:20,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:20,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:20,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:20,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:20,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:20,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:20,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:20,742 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:20,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (1/1) ... [2018-11-28 18:03:20,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:20,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:20,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:20,800 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:20,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (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 [2018-11-28 18:03:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 18:03:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 18:03:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 18:03:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 18:03:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:21,416 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:21,416 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:21,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:21 BoogieIcfgContainer [2018-11-28 18:03:21,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:21,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:21,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:21,421 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:21,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:20" (1/3) ... [2018-11-28 18:03:21,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44136b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:21, skipping insertion in model container [2018-11-28 18:03:21,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:20" (2/3) ... [2018-11-28 18:03:21,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44136b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:21, skipping insertion in model container [2018-11-28 18:03:21,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:21" (3/3) ... [2018-11-28 18:03:21,425 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-11-28 18:03:21,436 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:21,446 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:21,465 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:21,500 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:21,501 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:21,501 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:21,501 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:21,502 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:21,502 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:21,502 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:21,502 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:21,502 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-28 18:03:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:03:21,536 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:21,537 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:21,539 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:21,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:21,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1505277509, now seen corresponding path program 1 times [2018-11-28 18:03:21,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:21,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:21,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:21,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:21,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:21,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:21,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:21,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:21,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:21,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:21,728 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-28 18:03:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:21,751 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-28 18:03:21,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:21,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 18:03:21,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:21,762 INFO L225 Difference]: With dead ends: 56 [2018-11-28 18:03:21,762 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 18:03:21,766 INFO L631 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 [2018-11-28 18:03:21,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 18:03:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 18:03:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 18:03:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 18:03:21,808 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-28 18:03:21,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:21,808 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 18:03:21,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 18:03:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 18:03:21,810 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:21,810 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:21,810 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:21,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:21,811 INFO L82 PathProgramCache]: Analyzing trace with hash -820328856, now seen corresponding path program 1 times [2018-11-28 18:03:21,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:21,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:21,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:21,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:21,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:21,911 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:21,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:21 BoogieIcfgContainer [2018-11-28 18:03:21,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:21,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:21,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:21,957 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:21,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:21" (3/4) ... [2018-11-28 18:03:21,963 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:21,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:21,965 INFO L168 Benchmark]: Toolchain (without parser) took 1647.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -115.3 MB). Peak memory consumption was 7.5 kB. Max. memory is 11.5 GB. [2018-11-28 18:03:21,970 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:21,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.70 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:21,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.01 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:21,974 INFO L168 Benchmark]: Boogie Preprocessor took 58.28 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:21,976 INFO L168 Benchmark]: RCFGBuilder took 617.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:21,977 INFO L168 Benchmark]: TraceAbstraction took 538.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:21,978 INFO L168 Benchmark]: Witness Printer took 7.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:21,983 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 375.70 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.01 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.28 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 617.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 538.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 7.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = 0.0f; VAL [x=0] [L46] CALL, EXPR fabs_float(x) VAL [\old(x)=0] [L13] __uint32_t ix; VAL [\old(x)=0, x=0] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type sf_u; [L21] sf_u.word = (ix & 0x7fffffff) [L22] EXPR sf_u.value [L22] (x) = sf_u.value [L24] return x; VAL [\old(x)=0, \result=5, ix=12, x=5] [L46] RET, EXPR fabs_float(x) VAL [fabs_float(x)=5, x=0] [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=5, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() VAL [res=5, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 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=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-91b1670 [2018-11-28 18:03:24,441 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:24,443 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:24,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:24,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:24,462 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:24,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:24,467 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:24,469 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:24,474 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:24,475 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:24,475 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:24,476 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:24,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:24,479 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:24,480 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:24,481 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:24,483 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:24,485 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:24,489 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:24,492 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:24,494 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:24,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:24,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:24,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:24,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:24,503 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:24,507 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:24,509 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:24,511 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:24,512 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:24,513 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:24,513 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:24,513 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:24,515 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:24,516 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:24,516 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:24,532 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:24,532 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:24,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:24,533 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:24,533 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:24,534 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:24,534 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:24,534 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:24,534 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:24,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:24,535 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:24,535 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:24,535 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:24,535 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:24,535 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:24,536 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:24,536 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:24,536 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:24,536 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:24,536 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:24,537 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:24,537 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:24,537 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:24,537 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:24,537 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:24,537 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:24,538 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:24,538 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:24,538 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:24,538 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:24,538 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:24,538 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:24,539 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2018-11-28 18:03:24,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:24,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:24,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:24,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:24,594 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:24,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-28 18:03:24,667 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6822ef191/f7536e58cd24430a9bc36ccadbbdf7be/FLAGc99119871 [2018-11-28 18:03:25,136 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:25,137 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-11-28 18:03:25,147 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6822ef191/f7536e58cd24430a9bc36ccadbbdf7be/FLAGc99119871 [2018-11-28 18:03:25,473 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6822ef191/f7536e58cd24430a9bc36ccadbbdf7be [2018-11-28 18:03:25,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:25,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:25,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:25,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:25,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:25,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37dcfbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25, skipping insertion in model container [2018-11-28 18:03:25,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:25,521 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:25,706 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:25,713 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:25,741 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:25,771 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:25,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25 WrapperNode [2018-11-28 18:03:25,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:25,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:25,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:25,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:25,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:25,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:25,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:25,807 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:25,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (1/1) ... [2018-11-28 18:03:25,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:25,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:25,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:25,848 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:25,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (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 [2018-11-28 18:03:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:25,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:25,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 18:03:25,979 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 18:03:25,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 18:03:25,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 18:03:25,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:25,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:26,178 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:26,451 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:26,470 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:26,470 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:26,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:26 BoogieIcfgContainer [2018-11-28 18:03:26,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:26,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:26,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:26,475 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:26,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:25" (1/3) ... [2018-11-28 18:03:26,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d303e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:26, skipping insertion in model container [2018-11-28 18:03:26,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:25" (2/3) ... [2018-11-28 18:03:26,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d303e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:26, skipping insertion in model container [2018-11-28 18:03:26,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:26" (3/3) ... [2018-11-28 18:03:26,479 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-11-28 18:03:26,491 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:26,500 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:26,519 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:26,554 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:26,555 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:26,555 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:26,555 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:26,555 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:26,556 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:26,556 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:26,556 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:26,556 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-28 18:03:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:03:26,581 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:26,582 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:26,584 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:26,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:26,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1505277509, now seen corresponding path program 1 times [2018-11-28 18:03:26,594 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:26,595 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:03:26,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:26,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:26,693 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:26,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:26,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:26,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:26,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:26,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:26,729 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-28 18:03:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:26,761 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-28 18:03:26,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:26,763 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 18:03:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:26,773 INFO L225 Difference]: With dead ends: 56 [2018-11-28 18:03:26,773 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 18:03:26,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:26,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 18:03:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 18:03:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 18:03:26,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 18:03:26,820 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-28 18:03:26,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:26,820 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 18:03:26,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:26,820 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 18:03:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 18:03:26,821 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:26,822 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:26,822 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:26,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:26,822 INFO L82 PathProgramCache]: Analyzing trace with hash -820328856, now seen corresponding path program 1 times [2018-11-28 18:03:26,824 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:26,824 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:03:26,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:26,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:27,443 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:27,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:27,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 18:03:27,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 18:03:27,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 18:03:27,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:03:27,462 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-28 18:03:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:28,293 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-28 18:03:28,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:28,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-28 18:03:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:28,296 INFO L225 Difference]: With dead ends: 31 [2018-11-28 18:03:28,297 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 18:03:28,298 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-28 18:03:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 18:03:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 18:03:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 18:03:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-28 18:03:28,304 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 19 [2018-11-28 18:03:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:28,305 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-28 18:03:28,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 18:03:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-28 18:03:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 18:03:28,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:28,306 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:28,307 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:28,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1040391693, now seen corresponding path program 1 times [2018-11-28 18:03:28,308 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:28,308 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:03:28,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:28,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:29,410 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:29,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:29,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 18:03:29,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 18:03:29,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 18:03:29,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-28 18:03:29,425 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 14 states. [2018-11-28 18:03:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:30,341 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-28 18:03:30,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 18:03:30,342 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2018-11-28 18:03:30,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:30,344 INFO L225 Difference]: With dead ends: 28 [2018-11-28 18:03:30,344 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:30,346 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-11-28 18:03:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:30,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:30,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-28 18:03:30,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:30,347 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:30,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 18:03:30,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:30,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:30,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:30,659 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-28 18:03:30,662 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:30,662 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:30,663 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:30,663 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 12 25) no Hoare annotation was computed. [2018-11-28 18:03:30,663 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 12 25) no Hoare annotation was computed. [2018-11-28 18:03:30,663 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 12 25) the Hoare annotation is: true [2018-11-28 18:03:30,663 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-11-28 18:03:30,663 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 12 25) no Hoare annotation was computed. [2018-11-28 18:03:30,663 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2018-11-28 18:03:30,664 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-28 18:03:30,664 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-11-28 18:03:30,664 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:30,664 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:03:30,664 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:30,664 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:30,664 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 39 55) the Hoare annotation is: true [2018-11-28 18:03:30,665 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 39 55) no Hoare annotation was computed. [2018-11-28 18:03:30,665 INFO L448 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-28 18:03:30,665 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-28 18:03:30,665 INFO L444 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483647 32) fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (_ +zero 8 24))))) [2018-11-28 18:03:30,665 INFO L448 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-28 18:03:30,665 INFO L444 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-11-28 18:03:30,666 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-28 18:03:30,666 INFO L448 ceAbstractionStarter]: For program point L49-4(lines 49 52) no Hoare annotation was computed. [2018-11-28 18:03:30,666 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 39 55) no Hoare annotation was computed. [2018-11-28 18:03:30,666 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2018-11-28 18:03:30,666 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-28 18:03:30,666 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-28 18:03:30,667 INFO L448 ceAbstractionStarter]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2018-11-28 18:03:30,667 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 27 37) no Hoare annotation was computed. [2018-11-28 18:03:30,667 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 27 37) the Hoare annotation is: true [2018-11-28 18:03:30,667 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 27 37) no Hoare annotation was computed. [2018-11-28 18:03:30,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:30 BoogieIcfgContainer [2018-11-28 18:03:30,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:30,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:30,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:30,683 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:30,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:26" (3/4) ... [2018-11-28 18:03:30,689 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:30,697 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:30,697 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-28 18:03:30,698 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:30,698 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-28 18:03:30,703 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-28 18:03:30,704 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 18:03:30,704 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:03:30,738 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 18:03:30,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:30,786 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:30,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:30,787 INFO L168 Benchmark]: Toolchain (without parser) took 5310.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.0 MB in the beginning and 956.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:30,789 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:30,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.91 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:30,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.20 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:30,791 INFO L168 Benchmark]: Boogie Preprocessor took 41.37 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:30,792 INFO L168 Benchmark]: RCFGBuilder took 622.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:30,793 INFO L168 Benchmark]: TraceAbstraction took 4210.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.7 MB in the end (delta: 141.9 MB). Peak memory consumption was 141.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:30,794 INFO L168 Benchmark]: Witness Printer took 103.61 ms. Allocated memory is still 1.2 GB. Free memory was 962.7 MB in the beginning and 956.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:30,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.91 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.20 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.37 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 622.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4210.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.7 MB in the end (delta: 141.9 MB). Peak memory consumption was 141.9 MB. Max. memory is 11.5 GB. * Witness Printer took 103.61 ms. Allocated memory is still 1.2 GB. Free memory was 962.7 MB in the beginning and 956.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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: 30]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 277 SDs, 0 SdLazy, 158 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 46 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 14 QuantifiedInterpolants, 11692 SizeOfPredicates, 13 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...