./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c1f4b5c4 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.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 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ........................................................................................................................................................................................................................................................................................... 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 -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 ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.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 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:54:24,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:54:24,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:54:25,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:54:25,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:54:25,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:54:25,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:54:25,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:54:25,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:54:25,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:54:25,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:54:25,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:54:25,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:54:25,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:54:25,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:54:25,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:54:25,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:54:25,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:54:25,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:54:25,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:54:25,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:54:25,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:54:25,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:54:25,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:54:25,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:54:25,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:54:25,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:54:25,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:54:25,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:54:25,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:54:25,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:54:25,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:54:25,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:54:25,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:54:25,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:54:25,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:54:25,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:54:25,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:54:25,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:54:25,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:54:25,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:54:25,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:54:25,087 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:54:25,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:54:25,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:54:25,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:54:25,089 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:54:25,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:54:25,090 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:54:25,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:54:25,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:54:25,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:54:25,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:54:25,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:54:25,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:54:25,091 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:54:25,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:54:25,092 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:54:25,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:54:25,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:54:25,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:54:25,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:54:25,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:54:25,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:54:25,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:54:25,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:54:25,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:54:25,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:54:25,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:54:25,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:54:25,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:54:25,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2019-12-08 15:54:25,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:54:25,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:54:25,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:54:25,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:54:25,450 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:54:25,450 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-08 15:54:25,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276866a83/1674cb56c22147ef871338ac315f8099/FLAG4fa626c8f [2019-12-08 15:54:25,995 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:54:25,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-08 15:54:26,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276866a83/1674cb56c22147ef871338ac315f8099/FLAG4fa626c8f [2019-12-08 15:54:26,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/276866a83/1674cb56c22147ef871338ac315f8099 [2019-12-08 15:54:26,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:54:26,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:54:26,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:54:26,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:54:26,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:54:26,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2901ca2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26, skipping insertion in model container [2019-12-08 15:54:26,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:54:26,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:54:26,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:54:26,612 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:54:26,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:54:26,719 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:54:26,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26 WrapperNode [2019-12-08 15:54:26,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:54:26,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:54:26,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:54:26,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:54:26,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:54:26,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:54:26,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:54:26,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:54:26,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (1/1) ... [2019-12-08 15:54:26,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:54:26,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:54:26,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:54:26,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:54:26,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (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 [2019-12-08 15:54:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-08 15:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-08 15:54:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-08 15:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:54:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-08 15:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:54:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:54:27,257 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:54:27,258 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-08 15:54:27,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:54:27 BoogieIcfgContainer [2019-12-08 15:54:27,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:54:27,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:54:27,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:54:27,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:54:27,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:54:26" (1/3) ... [2019-12-08 15:54:27,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba21829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:54:27, skipping insertion in model container [2019-12-08 15:54:27,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:26" (2/3) ... [2019-12-08 15:54:27,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba21829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:54:27, skipping insertion in model container [2019-12-08 15:54:27,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:54:27" (3/3) ... [2019-12-08 15:54:27,266 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-12-08 15:54:27,278 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:54:27,288 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:54:27,302 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:54:27,323 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:54:27,323 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:54:27,323 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:54:27,323 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:54:27,323 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:54:27,323 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:54:27,324 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:54:27,324 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:54:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-12-08 15:54:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-08 15:54:27,344 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:54:27,345 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:54:27,346 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:54:27,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:54:27,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-12-08 15:54:27,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:54:27,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994446944] [2019-12-08 15:54:27,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:54:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:54:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:27,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994446944] [2019-12-08 15:54:27,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:54:27,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-08 15:54:27,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692299061] [2019-12-08 15:54:27,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:54:27,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:54:27,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:54:27,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:54:27,503 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-12-08 15:54:27,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:54:27,526 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-12-08 15:54:27,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:54:27,528 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-08 15:54:27,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:54:27,539 INFO L225 Difference]: With dead ends: 74 [2019-12-08 15:54:27,540 INFO L226 Difference]: Without dead ends: 35 [2019-12-08 15:54:27,544 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 [2019-12-08 15:54:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-08 15:54:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-08 15:54:27,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-08 15:54:27,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-12-08 15:54:27,587 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-12-08 15:54:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:54:27,587 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-12-08 15:54:27,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:54:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-12-08 15:54:27,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:54:27,589 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:54:27,589 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:54:27,590 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:54:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:54:27,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-12-08 15:54:27,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:54:27,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52869453] [2019-12-08 15:54:27,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:54:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:54:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:54:27,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:54:27,686 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:54:27,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:54:27 BoogieIcfgContainer [2019-12-08 15:54:27,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:54:27,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:54:27,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:54:27,724 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:54:27,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:54:27" (3/4) ... [2019-12-08 15:54:27,729 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:54:27,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:54:27,732 INFO L168 Benchmark]: Toolchain (without parser) took 1371.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -116.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:27,733 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:54:27,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:27,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:27,736 INFO L168 Benchmark]: Boogie Preprocessor took 30.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:54:27,736 INFO L168 Benchmark]: RCFGBuilder took 460.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:27,737 INFO L168 Benchmark]: TraceAbstraction took 462.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:27,738 INFO L168 Benchmark]: Witness Printer took 5.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:54:27,742 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 460.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 462.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.89 ms. Allocated memory is still 1.2 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 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=38occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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, 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 0.1.25-c1f4b5c [2019-12-08 15:54:29,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:54:29,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:54:29,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:54:29,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:54:29,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:54:29,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:54:29,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:54:29,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:54:29,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:54:29,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:54:29,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:54:29,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:54:29,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:54:29,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:54:29,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:54:29,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:54:29,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:54:29,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:54:29,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:54:29,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:54:29,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:54:29,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:54:29,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:54:29,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:54:29,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:54:29,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:54:29,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:54:29,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:54:29,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:54:29,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:54:29,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:54:29,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:54:29,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:54:29,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:54:29,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:54:29,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:54:29,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:54:29,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:54:29,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:54:29,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:54:29,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:54:29,704 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:54:29,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:54:29,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:54:29,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:54:29,707 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:54:29,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:54:29,707 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:54:29,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:54:29,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:54:29,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:54:29,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:54:29,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:54:29,709 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:54:29,709 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:54:29,710 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:54:29,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:54:29,710 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:54:29,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:54:29,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:54:29,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:54:29,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:54:29,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:54:29,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:54:29,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:54:29,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:54:29,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:54:29,713 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:54:29,714 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:54:29,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:54:29,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:54:29,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:54:29,715 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2019-12-08 15:54:30,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:54:30,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:54:30,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:54:30,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:54:30,077 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:54:30,078 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-08 15:54:30,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0575594/af71909b43b54f7f93da44d8dc07af4a/FLAGfbc5b0b17 [2019-12-08 15:54:30,579 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:54:30,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-12-08 15:54:30,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0575594/af71909b43b54f7f93da44d8dc07af4a/FLAGfbc5b0b17 [2019-12-08 15:54:30,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0575594/af71909b43b54f7f93da44d8dc07af4a [2019-12-08 15:54:30,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:54:30,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:54:30,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:54:30,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:54:30,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:54:30,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:54:30" (1/1) ... [2019-12-08 15:54:30,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459d0d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:30, skipping insertion in model container [2019-12-08 15:54:30,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:54:30" (1/1) ... [2019-12-08 15:54:30,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:54:30,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:54:31,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:54:31,192 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:54:31,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:54:31,367 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:54:31,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31 WrapperNode [2019-12-08 15:54:31,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:54:31,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:54:31,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:54:31,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:54:31,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:54:31,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:54:31,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:54:31,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:54:31,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (1/1) ... [2019-12-08 15:54:31,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:54:31,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:54:31,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:54:31,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:54:31,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (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 [2019-12-08 15:54:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-08 15:54:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-08 15:54:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:54:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-08 15:54:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:54:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:54:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-08 15:54:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:54:32,827 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:54:32,827 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-08 15:54:32,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:54:32 BoogieIcfgContainer [2019-12-08 15:54:32,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:54:32,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:54:32,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:54:32,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:54:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:54:30" (1/3) ... [2019-12-08 15:54:32,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb0d018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:54:32, skipping insertion in model container [2019-12-08 15:54:32,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:54:31" (2/3) ... [2019-12-08 15:54:32,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb0d018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:54:32, skipping insertion in model container [2019-12-08 15:54:32,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:54:32" (3/3) ... [2019-12-08 15:54:32,837 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-12-08 15:54:32,848 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:54:32,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:54:32,868 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:54:32,893 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:54:32,893 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:54:32,894 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:54:32,894 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:54:32,894 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:54:32,894 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:54:32,895 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:54:32,895 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:54:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-12-08 15:54:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-08 15:54:32,917 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:54:32,918 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:54:32,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:54:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:54:32,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-12-08 15:54:32,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:54:32,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767273202] [2019-12-08 15:54:32,938 INFO L94 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 [2019-12-08 15:54:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:54:33,022 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-08 15:54:33,027 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:54:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:33,043 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:54:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:33,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767273202] [2019-12-08 15:54:33,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:54:33,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-08 15:54:33,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619247901] [2019-12-08 15:54:33,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:54:33,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:54:33,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:54:33,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:54:33,078 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-12-08 15:54:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:54:33,110 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-12-08 15:54:33,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:54:33,111 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-08 15:54:33,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:54:33,135 INFO L225 Difference]: With dead ends: 74 [2019-12-08 15:54:33,136 INFO L226 Difference]: Without dead ends: 35 [2019-12-08 15:54:33,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:54:33,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-08 15:54:33,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-08 15:54:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-08 15:54:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-12-08 15:54:33,189 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-12-08 15:54:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:54:33,189 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-12-08 15:54:33,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:54:33,190 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-12-08 15:54:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:54:33,192 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:54:33,192 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:54:33,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:54:33,405 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:54:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:54:33,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-12-08 15:54:33,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:54:33,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222251923] [2019-12-08 15:54:33,409 INFO L94 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 [2019-12-08 15:54:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:54:33,488 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-08 15:54:33,490 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:54:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:33,593 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:54:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:33,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222251923] [2019-12-08 15:54:33,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:54:33,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-08 15:54:33,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380031989] [2019-12-08 15:54:33,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-08 15:54:33,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:54:33,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-08 15:54:33,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-08 15:54:33,682 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2019-12-08 15:54:34,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:54:34,180 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2019-12-08 15:54:34,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-08 15:54:34,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-12-08 15:54:34,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:54:34,182 INFO L225 Difference]: With dead ends: 59 [2019-12-08 15:54:34,183 INFO L226 Difference]: Without dead ends: 34 [2019-12-08 15:54:34,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-08 15:54:34,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-08 15:54:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2019-12-08 15:54:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-08 15:54:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-12-08 15:54:34,191 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2019-12-08 15:54:34,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:54:34,192 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-12-08 15:54:34,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-08 15:54:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-12-08 15:54:34,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-08 15:54:34,193 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:54:34,193 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:54:34,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:54:34,407 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:54:34,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:54:34,407 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2019-12-08 15:54:34,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:54:34,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976214618] [2019-12-08 15:54:34,410 INFO L94 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 [2019-12-08 15:54:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:54:34,554 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-08 15:54:34,556 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:54:34,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:34,627 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:54:35,200 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-08 15:54:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:54:35,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976214618] [2019-12-08 15:54:35,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:54:35,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-08 15:54:35,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823123041] [2019-12-08 15:54:35,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-08 15:54:35,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:54:35,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-08 15:54:35,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-08 15:54:35,567 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-12-08 15:54:36,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:54:36,071 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-12-08 15:54:36,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-08 15:54:36,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-08 15:54:36,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:54:36,081 INFO L225 Difference]: With dead ends: 34 [2019-12-08 15:54:36,082 INFO L226 Difference]: Without dead ends: 22 [2019-12-08 15:54:36,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-08 15:54:36,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-08 15:54:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-08 15:54:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-08 15:54:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-12-08 15:54:36,088 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2019-12-08 15:54:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:54:36,088 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-12-08 15:54:36,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-08 15:54:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-12-08 15:54:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-08 15:54:36,089 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:54:36,089 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:54:36,297 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-08 15:54:36,298 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:54:36,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:54:36,298 INFO L82 PathProgramCache]: Analyzing trace with hash 461150674, now seen corresponding path program 1 times [2019-12-08 15:54:36,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:54:36,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399800285] [2019-12-08 15:54:36,301 INFO L94 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 [2019-12-08 15:54:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:54:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:54:36,825 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-08 15:54:36,826 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:54:37,026 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-08 15:54:37,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:54:37 BoogieIcfgContainer [2019-12-08 15:54:37,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:54:37,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:54:37,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:54:37,090 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:54:37,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:54:32" (3/4) ... [2019-12-08 15:54:37,093 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-08 15:54:37,170 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:54:37,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:54:37,173 INFO L168 Benchmark]: Toolchain (without parser) took 6216.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.0 MB in the beginning and 991.3 MB in the end (delta: -32.3 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:37,173 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:54:37,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:37,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:54:37,175 INFO L168 Benchmark]: Boogie Preprocessor took 56.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:54:37,176 INFO L168 Benchmark]: RCFGBuilder took 1349.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:37,176 INFO L168 Benchmark]: TraceAbstraction took 4258.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.9 MB in the end (delta: 98.2 MB). Peak memory consumption was 98.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:37,177 INFO L168 Benchmark]: Witness Printer took 81.80 ms. Allocated memory is still 1.2 GB. Free memory was 997.9 MB in the beginning and 991.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:54:37,180 INFO L335 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 410.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1349.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4258.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.9 MB in the end (delta: 98.2 MB). Peak memory consumption was 98.2 MB. Max. memory is 11.5 GB. * Witness Printer took 81.80 ms. Allocated memory is still 1.2 GB. Free memory was 997.9 MB in the beginning and 991.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 103]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND TRUE j0 < 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE huge_floor + x > 0.0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(i0 >= 0) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE ((i0 & 0x7fffffff) | i1) != 0 [L32] i0 = 0xbff00000 [L33] i1 = 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L71] ieee_double_shape_type iw_u; [L72] iw_u.parts.msw = (i0) [L73] iw_u.parts.lsw = (i1) [L74] EXPR iw_u.value [L74] (x) = iw_u.value [L76] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 123 SDslu, 47 SDs, 0 SdLazy, 27 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 5 QuantifiedInterpolants, 3844 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...