./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 f470102c 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-f470102 [2019-11-28 16:49:30,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:30,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:30,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:30,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:30,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:30,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:30,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:30,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:30,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:30,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:30,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:30,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:30,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:30,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:30,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:30,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:30,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:30,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:30,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:30,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:30,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:30,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:30,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:30,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:30,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:30,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:30,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:30,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:30,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:30,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:30,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:30,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:30,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:30,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:30,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:30,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:30,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:30,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:30,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:30,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:30,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:49:30,105 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:30,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:30,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:30,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:30,108 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:30,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:30,108 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:30,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:49:30,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:30,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:30,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:30,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:30,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:30,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:30,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:30,111 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:30,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:30,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:30,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:30,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:30,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:30,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:30,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:30,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:30,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:30,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:49:30,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:49:30,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:30,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:30,115 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 [2019-11-28 16:49:30,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:30,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:30,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:30,437 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:30,438 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:30,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-28 16:49:30,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bd19e977/da3398f5f6eb4ae28f68a9d991bd86a5/FLAGb97d52c54 [2019-11-28 16:49:31,008 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:31,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-28 16:49:31,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bd19e977/da3398f5f6eb4ae28f68a9d991bd86a5/FLAGb97d52c54 [2019-11-28 16:49:31,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bd19e977/da3398f5f6eb4ae28f68a9d991bd86a5 [2019-11-28 16:49:31,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:31,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:31,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:31,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:31,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:31,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cc878b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31, skipping insertion in model container [2019-11-28 16:49:31,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:31,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:31,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:31,674 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:31,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:31,807 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:31,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31 WrapperNode [2019-11-28 16:49:31,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:31,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:31,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:31,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:31,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:31,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:31,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:31,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:31,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (1/1) ... [2019-11-28 16:49:31,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:31,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:31,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:31,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:31,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (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 [2019-11-28 16:49:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:49:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:49:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:49:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:49:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:32,383 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:32,384 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-28 16:49:32,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:32 BoogieIcfgContainer [2019-11-28 16:49:32,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:32,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:32,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:32,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:32,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:31" (1/3) ... [2019-11-28 16:49:32,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582db159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:32, skipping insertion in model container [2019-11-28 16:49:32,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:31" (2/3) ... [2019-11-28 16:49:32,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582db159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:32, skipping insertion in model container [2019-11-28 16:49:32,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:32" (3/3) ... [2019-11-28 16:49:32,394 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-11-28 16:49:32,405 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:32,412 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:32,425 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:32,451 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:32,451 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:32,451 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:32,451 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:32,451 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:32,451 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:32,451 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:32,452 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-28 16:49:32,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:49:32,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:32,473 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:32,474 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:32,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:32,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-11-28 16:49:32,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:32,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818009224] [2019-11-28 16:49:32,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:32,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818009224] [2019-11-28 16:49:32,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:32,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:49:32,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079484500] [2019-11-28 16:49:32,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:32,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:49:32,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:32,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:32,613 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-11-28 16:49:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:32,632 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-11-28 16:49:32,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:32,634 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-28 16:49:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:32,645 INFO L225 Difference]: With dead ends: 74 [2019-11-28 16:49:32,646 INFO L226 Difference]: Without dead ends: 35 [2019-11-28 16:49:32,650 INFO L630 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 [2019-11-28 16:49:32,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-28 16:49:32,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-28 16:49:32,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 16:49:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-11-28 16:49:32,690 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-11-28 16:49:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:32,691 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-11-28 16:49:32,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-11-28 16:49:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:32,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:32,692 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:32,692 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:32,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-11-28 16:49:32,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:32,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558873201] [2019-11-28 16:49:32,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:32,790 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:49:32,790 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:49:32,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:32 BoogieIcfgContainer [2019-11-28 16:49:32,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:32,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:32,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:32,823 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:32,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:32" (3/4) ... [2019-11-28 16:49:32,827 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:49:32,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:32,829 INFO L168 Benchmark]: Toolchain (without parser) took 1426.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:32,830 INFO L168 Benchmark]: CDTParser took 0.87 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. [2019-11-28 16:49:32,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:32,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.91 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. [2019-11-28 16:49:32,832 INFO L168 Benchmark]: Boogie Preprocessor took 42.13 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. [2019-11-28 16:49:32,833 INFO L168 Benchmark]: RCFGBuilder took 486.09 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:32,834 INFO L168 Benchmark]: TraceAbstraction took 435.60 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:32,835 INFO L168 Benchmark]: Witness Printer took 4.73 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. [2019-11-28 16:49:32,839 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 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 404.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.91 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 42.13 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 486.09 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 435.60 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 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-f470102 [2019-11-28 16:49:34,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:34,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:34,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:34,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:34,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:34,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:34,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:34,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:34,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:34,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:34,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:34,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:34,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:34,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:34,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:34,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:34,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:34,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:34,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:34,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:34,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:34,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:34,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:34,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:34,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:34,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:34,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:34,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:34,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:34,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:34,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:34,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:34,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:34,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:34,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:34,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:34,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:34,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:34,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:34,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:34,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:49:34,785 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:34,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:34,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:34,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:34,788 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:34,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:34,788 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:34,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:34,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:34,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:34,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:34,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:34,791 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:49:34,792 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:49:34,792 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:34,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:34,793 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:34,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:34,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:34,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:34,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:34,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:34,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:34,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:34,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:34,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:34,796 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:49:34,796 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:49:34,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:34,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:34,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:49:34,797 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 [2019-11-28 16:49:35,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:35,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:35,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:35,228 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:35,229 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:35,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-28 16:49:35,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79b9f13d/52441c4ffaac415c962b6dd3acf730f6/FLAG2a442c1b5 [2019-11-28 16:49:35,802 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:35,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-28 16:49:35,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79b9f13d/52441c4ffaac415c962b6dd3acf730f6/FLAG2a442c1b5 [2019-11-28 16:49:36,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79b9f13d/52441c4ffaac415c962b6dd3acf730f6 [2019-11-28 16:49:36,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:36,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:36,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:36,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:36,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:36,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2cbe1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36, skipping insertion in model container [2019-11-28 16:49:36,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:36,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:36,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:36,456 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:36,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:36,600 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:36,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36 WrapperNode [2019-11-28 16:49:36,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:36,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:36,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:36,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:36,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:36,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:36,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:36,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:36,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (1/1) ... [2019-11-28 16:49:36,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:36,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:36,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:36,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:36,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (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 [2019-11-28 16:49:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:49:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:49:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:49:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:49:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:37,984 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:37,984 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-28 16:49:37,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:37 BoogieIcfgContainer [2019-11-28 16:49:37,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:37,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:37,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:37,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:37,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:36" (1/3) ... [2019-11-28 16:49:37,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ef4542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:37, skipping insertion in model container [2019-11-28 16:49:37,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:36" (2/3) ... [2019-11-28 16:49:37,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79ef4542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:37, skipping insertion in model container [2019-11-28 16:49:37,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:37" (3/3) ... [2019-11-28 16:49:37,995 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-11-28 16:49:38,005 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:38,013 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:38,025 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:38,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:38,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:38,050 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:38,050 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:38,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:38,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:38,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:38,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-28 16:49:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:49:38,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:38,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:38,072 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:38,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-11-28 16:49:38,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:38,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849264231] [2019-11-28 16:49:38,087 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 [2019-11-28 16:49:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:38,176 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:49:38,182 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:38,198 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:38,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849264231] [2019-11-28 16:49:38,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:38,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:49:38,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932217313] [2019-11-28 16:49:38,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:38,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:38,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:38,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:38,231 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-11-28 16:49:38,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:38,255 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-11-28 16:49:38,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:38,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-28 16:49:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:38,270 INFO L225 Difference]: With dead ends: 74 [2019-11-28 16:49:38,270 INFO L226 Difference]: Without dead ends: 35 [2019-11-28 16:49:38,274 INFO L630 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 [2019-11-28 16:49:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-28 16:49:38,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-28 16:49:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 16:49:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-11-28 16:49:38,313 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-11-28 16:49:38,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:38,314 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-11-28 16:49:38,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-11-28 16:49:38,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:38,316 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:38,316 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:38,531 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:49:38,531 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:38,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:38,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-11-28 16:49:38,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:38,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381300623] [2019-11-28 16:49:38,537 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 [2019-11-28 16:49:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:38,623 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:49:38,625 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:38,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:38,724 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:38,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381300623] [2019-11-28 16:49:38,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:38,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-28 16:49:38,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102527506] [2019-11-28 16:49:38,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:49:38,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:38,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:49:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:49:38,821 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2019-11-28 16:49:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:39,241 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2019-11-28 16:49:39,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 16:49:39,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-28 16:49:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:39,243 INFO L225 Difference]: With dead ends: 59 [2019-11-28 16:49:39,245 INFO L226 Difference]: Without dead ends: 34 [2019-11-28 16:49:39,246 INFO L630 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 [2019-11-28 16:49:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-28 16:49:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2019-11-28 16:49:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 16:49:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-11-28 16:49:39,260 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2019-11-28 16:49:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:39,261 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-11-28 16:49:39,261 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:49:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-11-28 16:49:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:49:39,266 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:39,267 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:39,480 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:49:39,481 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2019-11-28 16:49:39,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:39,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025695683] [2019-11-28 16:49:39,484 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 [2019-11-28 16:49:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:39,621 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 16:49:39,623 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:39,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:39,697 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:40,533 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-28 16:49:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:40,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025695683] [2019-11-28 16:49:40,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:40,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 16:49:40,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372019048] [2019-11-28 16:49:40,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 16:49:40,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:40,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 16:49:40,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 16:49:40,779 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-11-28 16:49:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:41,179 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-28 16:49:41,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:49:41,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 16:49:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:41,189 INFO L225 Difference]: With dead ends: 34 [2019-11-28 16:49:41,189 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 16:49:41,190 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 16:49:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 16:49:41,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 16:49:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 16:49:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-28 16:49:41,195 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2019-11-28 16:49:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:41,195 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-28 16:49:41,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 16:49:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-28 16:49:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 16:49:41,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:41,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:41,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:49:41,407 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:41,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:41,408 INFO L82 PathProgramCache]: Analyzing trace with hash 461150674, now seen corresponding path program 1 times [2019-11-28 16:49:41,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:41,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871434301] [2019-11-28 16:49:41,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 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 [2019-11-28 16:49:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:41,778 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 16:49:41,779 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:49:41,980 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 16:49:42,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:42 BoogieIcfgContainer [2019-11-28 16:49:42,019 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:42,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:42,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:42,020 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:42,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:37" (3/4) ... [2019-11-28 16:49:42,023 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:49:42,082 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:49:42,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:42,085 INFO L168 Benchmark]: Toolchain (without parser) took 5905.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 960.4 MB in the beginning and 960.8 MB in the end (delta: -387.7 kB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:42,086 INFO L168 Benchmark]: CDTParser took 0.29 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. [2019-11-28 16:49:42,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:42,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.12 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. [2019-11-28 16:49:42,088 INFO L168 Benchmark]: Boogie Preprocessor took 43.08 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:42,088 INFO L168 Benchmark]: RCFGBuilder took 1293.40 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:42,089 INFO L168 Benchmark]: TraceAbstraction took 4031.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 967.4 MB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:42,090 INFO L168 Benchmark]: Witness Printer took 63.50 ms. Allocated memory is still 1.1 GB. Free memory was 967.4 MB in the beginning and 960.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:42,094 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 421.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.12 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. * Boogie Preprocessor took 43.08 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1293.40 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4031.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 967.4 MB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 11.5 GB. * Witness Printer took 63.50 ms. Allocated memory is still 1.1 GB. Free memory was 967.4 MB in the beginning and 960.8 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: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 123 SDslu, 47 SDs, 0 SdLazy, 27 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s 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, 1.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 5 QuantifiedInterpolants, 3734 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...