./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_1092d.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 bbea5fc7c8725f5cbc8325b1d09f091d3964966d .......................................................................................................................................................................................................................................................................................................................................... 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 -ea -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_1092d.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 bbea5fc7c8725f5cbc8325b1d09f091d3964966d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-8bd4bc6 [2020-07-28 17:43:01,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:43:01,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:43:01,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:43:01,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:43:01,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:43:01,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:43:01,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:43:01,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:43:01,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:43:01,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:43:01,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:43:01,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:43:01,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:43:01,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:43:01,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:43:01,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:43:01,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:43:01,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:43:01,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:43:01,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:43:01,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:43:01,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:43:01,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:43:01,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:43:01,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:43:01,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:43:01,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:43:01,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:43:01,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:43:01,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:43:01,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:43:01,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:43:01,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:43:01,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:43:01,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:43:01,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:43:01,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:43:01,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:43:01,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:43:01,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:43:01,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:43:01,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:43:01,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:43:01,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:43:01,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:43:01,361 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:43:01,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:43:01,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:43:01,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:43:01,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:43:01,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:43:01,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:43:01,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:43:01,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:43:01,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:43:01,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:43:01,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:43:01,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:43:01,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:43:01,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:43:01,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:43:01,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:43:01,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:43:01,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:43:01,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:43:01,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:43:01,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:43:01,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:43:01,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:43:01,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:43:01,368 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 -> bbea5fc7c8725f5cbc8325b1d09f091d3964966d [2020-07-28 17:43:01,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:43:01,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:43:01,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:43:01,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:43:01,716 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:43:01,717 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-07-28 17:43:01,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f796817b/d4bd216507a14e558bbf5b1b8b4e8317/FLAGa768961e3 [2020-07-28 17:43:02,222 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:43:02,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-07-28 17:43:02,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f796817b/d4bd216507a14e558bbf5b1b8b4e8317/FLAGa768961e3 [2020-07-28 17:43:02,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f796817b/d4bd216507a14e558bbf5b1b8b4e8317 [2020-07-28 17:43:02,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:43:02,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:43:02,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:02,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:43:02,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:43:02,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:02,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4c4791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02, skipping insertion in model container [2020-07-28 17:43:02,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:02,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:43:02,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:43:02,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:02,827 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:43:02,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:02,949 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:43:02,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02 WrapperNode [2020-07-28 17:43:02,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:02,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:02,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:43:02,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:43:02,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:02,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:03,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:43:03,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:43:03,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:43:03,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... [2020-07-28 17:43:03,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:43:03,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:43:03,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:43:03,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:43:03,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:43:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:43:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:43:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:43:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:43:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:43:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:43:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:43:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:43:03,710 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:43:03,711 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:43:03,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:03 BoogieIcfgContainer [2020-07-28 17:43:03,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:43:03,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:43:03,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:43:03,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:43:03,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:43:02" (1/3) ... [2020-07-28 17:43:03,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bc53d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:03, skipping insertion in model container [2020-07-28 17:43:03,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:02" (2/3) ... [2020-07-28 17:43:03,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bc53d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:03, skipping insertion in model container [2020-07-28 17:43:03,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:03" (3/3) ... [2020-07-28 17:43:03,724 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-07-28 17:43:03,735 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:43:03,743 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:43:03,756 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:43:03,781 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:43:03,782 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:43:03,782 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:43:03,782 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:43:03,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:43:03,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:43:03,786 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:43:03,786 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:43:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-28 17:43:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 17:43:03,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:03,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:03,809 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:03,815 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-07-28 17:43:03,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:43:03,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789682103] [2020-07-28 17:43:03,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:43:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:03,961 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_ceil~0 := 1.0E300; {40#true} is VALID [2020-07-28 17:43:03,962 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticDOUBLEoperation(~someUnaryDOUBLEoperation(1.0), 0.0);ceil_double_#in~x := main_~x~0;havoc ceil_double_#res;havoc ceil_double_#t~mem0, ceil_double_#t~union1, ceil_double_#t~mem2, ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, ceil_double_#t~mem4, ceil_double_#t~union5.lsw, ceil_double_#t~union5.msw, ceil_double_~#iw_u~0.base, ceil_double_~#iw_u~0.offset, ceil_double_~x, ceil_double_~i0~0, ceil_double_~i1~0, ceil_double_~j0~0, ceil_double_~i~0, ceil_double_~j~0;ceil_double_~x := ceil_double_#in~x;havoc ceil_double_~i0~0;havoc ceil_double_~i1~0;havoc ceil_double_~j0~0;havoc ceil_double_~i~0;havoc ceil_double_~j~0; {40#true} is VALID [2020-07-28 17:43:03,963 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:43:03,963 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} ceil_double_~j0~0 := ~bitwiseAnd(ceil_double_~i0~0 / 1048576, 2047) - 1023; {41#false} is VALID [2020-07-28 17:43:03,964 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume ceil_double_~j0~0 < 20; {41#false} is VALID [2020-07-28 17:43:03,964 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} assume !(ceil_double_~j0~0 < 0);ceil_double_~i~0 := ~shiftRight(1048575, ceil_double_~j0~0); {41#false} is VALID [2020-07-28 17:43:03,965 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume 0 == ~bitwiseOr(~bitwiseAnd(ceil_double_~i0~0, ceil_double_~i~0), ceil_double_~i1~0) % 4294967296;ceil_double_#res := ceil_double_~x; {41#false} is VALID [2020-07-28 17:43:03,965 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} main_#t~ret10 := ceil_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {41#false} is VALID [2020-07-28 17:43:03,965 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-28 17:43:03,966 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#false} isinf_double_~hx~0 := ~bitwiseAnd(isinf_double_~hx~0, 2147483647);isinf_double_~hx~0 := (if ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 - 4294967296);isinf_double_~hx~0 := 2146435072 - isinf_double_~hx~0;isinf_double_#res := 1 - (if ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 - 4294967296); {41#false} is VALID [2020-07-28 17:43:03,966 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} main_#t~ret11 := isinf_double_#res;assume -2147483648 <= main_#t~ret11 && main_#t~ret11 <= 2147483647; {41#false} is VALID [2020-07-28 17:43:03,967 INFO L280 TraceCheckUtils]: 11: Hoare triple {41#false} assume 0 == main_#t~ret11;havoc main_#t~ret11; {41#false} is VALID [2020-07-28 17:43:03,967 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:43:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:03,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789682103] [2020-07-28 17:43:03,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:43:03,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:43:03,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118614627] [2020-07-28 17:43:03,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:43:03,982 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:43:03,986 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:43:04,014 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:04,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:43:04,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:43:04,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:43:04,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:04,027 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-28 17:43:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:04,119 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-07-28 17:43:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:43:04,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:43:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:43:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:43:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:43:04,134 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 114 transitions. [2020-07-28 17:43:04,301 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:04,314 INFO L225 Difference]: With dead ends: 72 [2020-07-28 17:43:04,314 INFO L226 Difference]: Without dead ends: 34 [2020-07-28 17:43:04,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:04,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-28 17:43:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-28 17:43:04,356 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:04,357 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:04,357 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:04,358 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:04,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:04,362 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:43:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:43:04,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:04,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:04,363 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:04,364 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:04,368 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:43:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:43:04,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:04,369 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:04,369 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:04,369 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:04,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-28 17:43:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-07-28 17:43:04,374 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-07-28 17:43:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:04,375 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-07-28 17:43:04,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:43:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:43:04,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:43:04,376 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:04,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:04,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:43:04,377 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:04,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:04,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-07-28 17:43:04,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:43:04,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343753761] [2020-07-28 17:43:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:43:04,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:43:04,542 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:43:04,552 INFO L168 Benchmark]: Toolchain (without parser) took 1982.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -71.1 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:04,553 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:04,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:04,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.42 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:04,560 INFO L168 Benchmark]: Boogie Preprocessor took 45.32 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. [2020-07-28 17:43:04,562 INFO L168 Benchmark]: RCFGBuilder took 657.52 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: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:04,563 INFO L168 Benchmark]: TraceAbstraction took 831.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:04,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.42 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.32 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 657.52 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: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 831.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:43:06,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:43:06,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:43:06,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:43:06,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:43:06,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:43:06,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:43:06,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:43:06,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:43:06,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:43:06,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:43:06,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:43:06,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:43:06,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:43:06,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:43:06,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:43:06,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:43:06,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:43:06,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:43:06,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:43:06,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:43:06,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:43:06,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:43:06,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:43:06,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:43:06,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:43:06,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:43:06,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:43:06,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:43:06,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:43:06,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:43:06,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:43:06,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:43:06,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:43:06,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:43:06,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:43:06,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:43:06,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:43:06,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:43:06,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:43:06,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:43:06,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:43:06,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:43:06,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:43:06,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:43:06,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:43:06,746 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:43:06,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:43:06,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:43:06,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:43:06,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:43:06,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:43:06,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:43:06,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:43:06,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:43:06,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:43:06,749 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:43:06,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:43:06,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:43:06,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:43:06,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:43:06,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:43:06,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:43:06,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:43:06,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:43:06,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:43:06,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:43:06,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:43:06,752 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:43:06,753 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:43:06,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:43:06,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:43:06,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:43:06,754 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 -> bbea5fc7c8725f5cbc8325b1d09f091d3964966d [2020-07-28 17:43:07,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:43:07,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:43:07,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:43:07,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:43:07,083 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:43:07,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-07-28 17:43:07,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2b0d4895/3a00198c899e4b9ab913ffe4aad4f828/FLAG25b1f2a44 [2020-07-28 17:43:07,594 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:43:07,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-07-28 17:43:07,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2b0d4895/3a00198c899e4b9ab913ffe4aad4f828/FLAG25b1f2a44 [2020-07-28 17:43:07,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2b0d4895/3a00198c899e4b9ab913ffe4aad4f828 [2020-07-28 17:43:07,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:43:07,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:43:07,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:07,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:43:07,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:43:07,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:07" (1/1) ... [2020-07-28 17:43:07,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdc094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:07, skipping insertion in model container [2020-07-28 17:43:07,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:43:07" (1/1) ... [2020-07-28 17:43:07,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:43:07,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:43:08,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:08,192 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:43:08,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:43:08,324 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:43:08,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08 WrapperNode [2020-07-28 17:43:08,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:43:08,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:08,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:43:08,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:43:08,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:43:08,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:43:08,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:43:08,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:43:08,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... [2020-07-28 17:43:08,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:43:08,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:43:08,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:43:08,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:43:08,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:43:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:43:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:43:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:43:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:43:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:43:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:43:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:43:08,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:43:10,152 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:43:10,152 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-28 17:43:10,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:10 BoogieIcfgContainer [2020-07-28 17:43:10,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:43:10,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:43:10,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:43:10,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:43:10,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:43:07" (1/3) ... [2020-07-28 17:43:10,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e16bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:10, skipping insertion in model container [2020-07-28 17:43:10,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:43:08" (2/3) ... [2020-07-28 17:43:10,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e16bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:43:10, skipping insertion in model container [2020-07-28 17:43:10,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:10" (3/3) ... [2020-07-28 17:43:10,164 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-07-28 17:43:10,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:43:10,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:43:10,192 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:43:10,213 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:43:10,213 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:43:10,214 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:43:10,214 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:43:10,214 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:43:10,214 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:43:10,215 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:43:10,215 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:43:10,230 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-28 17:43:10,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 17:43:10,236 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:10,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:10,238 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:10,244 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-07-28 17:43:10,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:10,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574207079] [2020-07-28 17:43:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 17:43:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:10,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:43:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:10,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:43:10,431 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {40#true} is VALID [2020-07-28 17:43:10,432 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0)), ~Pluszero~DOUBLE());ceil_double_#in~x := main_~x~0;havoc ceil_double_#res;havoc ceil_double_#t~mem0, ceil_double_#t~union1, ceil_double_#t~mem2, ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, ceil_double_#t~mem4, ceil_double_#t~union5.lsw, ceil_double_#t~union5.msw, ceil_double_~#iw_u~0.base, ceil_double_~#iw_u~0.offset, ceil_double_~x, ceil_double_~i0~0, ceil_double_~i1~0, ceil_double_~j0~0, ceil_double_~i~0, ceil_double_~j~0;ceil_double_~x := ceil_double_#in~x;havoc ceil_double_~i0~0;havoc ceil_double_~i1~0;havoc ceil_double_~j0~0;havoc ceil_double_~i~0;havoc ceil_double_~j~0; {40#true} is VALID [2020-07-28 17:43:10,434 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:43:10,434 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} ceil_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(ceil_double_~i0~0, 20bv32)), 1023bv32); {41#false} is VALID [2020-07-28 17:43:10,435 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume ~bvslt32(ceil_double_~j0~0, 20bv32); {41#false} is VALID [2020-07-28 17:43:10,435 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} assume !~bvslt32(ceil_double_~j0~0, 0bv32);ceil_double_~i~0 := ~bvashr32(1048575bv32, ceil_double_~j0~0); {41#false} is VALID [2020-07-28 17:43:10,435 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume 0bv32 == ~bvor32(~bvand32(ceil_double_~i0~0, ceil_double_~i~0), ceil_double_~i1~0);ceil_double_#res := ceil_double_~x; {41#false} is VALID [2020-07-28 17:43:10,436 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} main_#t~ret10 := ceil_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {41#false} is VALID [2020-07-28 17:43:10,436 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-28 17:43:10,436 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {41#false} is VALID [2020-07-28 17:43:10,437 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} main_#t~ret11 := isinf_double_#res; {41#false} is VALID [2020-07-28 17:43:10,437 INFO L280 TraceCheckUtils]: 11: Hoare triple {41#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {41#false} is VALID [2020-07-28 17:43:10,437 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:43:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:10,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:43:10,457 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:43:10,457 INFO L280 TraceCheckUtils]: 11: Hoare triple {41#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {41#false} is VALID [2020-07-28 17:43:10,458 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} main_#t~ret11 := isinf_double_#res; {41#false} is VALID [2020-07-28 17:43:10,458 INFO L280 TraceCheckUtils]: 9: Hoare triple {41#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {41#false} is VALID [2020-07-28 17:43:10,458 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-28 17:43:10,459 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} main_#t~ret10 := ceil_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {41#false} is VALID [2020-07-28 17:43:10,459 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume 0bv32 == ~bvor32(~bvand32(ceil_double_~i0~0, ceil_double_~i~0), ceil_double_~i1~0);ceil_double_#res := ceil_double_~x; {41#false} is VALID [2020-07-28 17:43:10,459 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} assume !~bvslt32(ceil_double_~j0~0, 0bv32);ceil_double_~i~0 := ~bvashr32(1048575bv32, ceil_double_~j0~0); {41#false} is VALID [2020-07-28 17:43:10,460 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume ~bvslt32(ceil_double_~j0~0, 20bv32); {41#false} is VALID [2020-07-28 17:43:10,460 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} ceil_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(ceil_double_~i0~0, 20bv32)), 1023bv32); {41#false} is VALID [2020-07-28 17:43:10,461 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:43:10,461 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0)), ~Pluszero~DOUBLE());ceil_double_#in~x := main_~x~0;havoc ceil_double_#res;havoc ceil_double_#t~mem0, ceil_double_#t~union1, ceil_double_#t~mem2, ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, ceil_double_#t~mem4, ceil_double_#t~union5.lsw, ceil_double_#t~union5.msw, ceil_double_~#iw_u~0.base, ceil_double_~#iw_u~0.offset, ceil_double_~x, ceil_double_~i0~0, ceil_double_~i1~0, ceil_double_~j0~0, ceil_double_~i~0, ceil_double_~j~0;ceil_double_~x := ceil_double_#in~x;havoc ceil_double_~i0~0;havoc ceil_double_~i1~0;havoc ceil_double_~j0~0;havoc ceil_double_~i~0;havoc ceil_double_~j~0; {40#true} is VALID [2020-07-28 17:43:10,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {40#true} is VALID [2020-07-28 17:43:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:10,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574207079] [2020-07-28 17:43:10,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:43:10,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:43:10,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051862121] [2020-07-28 17:43:10,472 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:43:10,473 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:43:10,478 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:43:10,511 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:10,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:43:10,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:43:10,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:43:10,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:10,525 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-28 17:43:11,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:11,539 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-07-28 17:43:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:43:11,539 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-07-28 17:43:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:43:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:11,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:43:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:43:11,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2020-07-28 17:43:11,559 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 114 transitions. [2020-07-28 17:43:12,145 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:12,169 INFO L225 Difference]: With dead ends: 72 [2020-07-28 17:43:12,170 INFO L226 Difference]: Without dead ends: 34 [2020-07-28 17:43:12,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-28 17:43:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-28 17:43:12,236 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:12,237 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:12,238 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:12,238 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:12,251 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:43:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:43:12,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:12,254 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:12,255 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:12,255 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:43:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:12,261 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-07-28 17:43:12,262 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:43:12,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:12,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:12,267 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:12,268 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:12,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-28 17:43:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-07-28 17:43:12,277 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-07-28 17:43:12,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:12,278 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-07-28 17:43:12,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:43:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-07-28 17:43:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:43:12,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:12,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:12,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:43:12,498 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:12,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:12,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-07-28 17:43:12,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:12,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593796711] [2020-07-28 17:43:12,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:43:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:12,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:43:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:43:12,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:43:12,868 INFO L280 TraceCheckUtils]: 0: Hoare triple {304#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {304#true} is VALID [2020-07-28 17:43:12,873 INFO L280 TraceCheckUtils]: 1: Hoare triple {304#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0)), ~Pluszero~DOUBLE());ceil_double_#in~x := main_~x~0;havoc ceil_double_#res;havoc ceil_double_#t~mem0, ceil_double_#t~union1, ceil_double_#t~mem2, ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, ceil_double_#t~mem4, ceil_double_#t~union5.lsw, ceil_double_#t~union5.msw, ceil_double_~#iw_u~0.base, ceil_double_~#iw_u~0.offset, ceil_double_~x, ceil_double_~i0~0, ceil_double_~i1~0, ceil_double_~j0~0, ceil_double_~i~0, ceil_double_~j~0;ceil_double_~x := ceil_double_#in~x;havoc ceil_double_~i0~0;havoc ceil_double_~i1~0;havoc ceil_double_~j0~0;havoc ceil_double_~i~0;havoc ceil_double_~j~0; {312#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))))} is VALID [2020-07-28 17:43:12,882 INFO L280 TraceCheckUtils]: 2: Hoare triple {312#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))))} call ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(ceil_double_~x, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 8bv32);call ceil_double_#t~mem0 := read~intINTTYPE4(ceil_double_~#ew_u~0.base, ~bvadd32(4bv32, ceil_double_~#ew_u~0.offset), 4bv32);ceil_double_~i0~0 := ceil_double_#t~mem0;call write~intFLOATTYPE8(ceil_double_#t~union1, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 8bv32);havoc ceil_double_#t~union1;havoc ceil_double_#t~mem0;call ceil_double_#t~mem2 := read~intINTTYPE4(ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 4bv32);ceil_double_~i1~0 := ceil_double_#t~mem2;call write~intFLOATTYPE8(ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 8bv32);havoc ceil_double_#t~mem2;havoc ceil_double_#t~union3;call ULTIMATE.dealloc(ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset);havoc ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset; {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_ceil_double_~i0~0)))} is VALID [2020-07-28 17:43:12,884 INFO L280 TraceCheckUtils]: 3: Hoare triple {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_ceil_double_~i0~0)))} goto; {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_ceil_double_~i0~0)))} is VALID [2020-07-28 17:43:12,892 INFO L280 TraceCheckUtils]: 4: Hoare triple {316#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_ceil_double_~i0~0)))} ceil_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(ceil_double_~i0~0, 20bv32)), 1023bv32); {323#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= (bvadd ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))))))} is VALID [2020-07-28 17:43:12,898 INFO L280 TraceCheckUtils]: 5: Hoare triple {323#(exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= (bvadd ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))))))} assume ~bvslt32(ceil_double_~j0~0, 20bv32); {305#false} is VALID [2020-07-28 17:43:12,899 INFO L280 TraceCheckUtils]: 6: Hoare triple {305#false} assume !~bvslt32(ceil_double_~j0~0, 0bv32);ceil_double_~i~0 := ~bvashr32(1048575bv32, ceil_double_~j0~0); {305#false} is VALID [2020-07-28 17:43:12,899 INFO L280 TraceCheckUtils]: 7: Hoare triple {305#false} assume 0bv32 == ~bvor32(~bvand32(ceil_double_~i0~0, ceil_double_~i~0), ceil_double_~i1~0);ceil_double_#res := ceil_double_~x; {305#false} is VALID [2020-07-28 17:43:12,899 INFO L280 TraceCheckUtils]: 8: Hoare triple {305#false} main_#t~ret10 := ceil_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {305#false} is VALID [2020-07-28 17:43:12,900 INFO L280 TraceCheckUtils]: 9: Hoare triple {305#false} call isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(isinf_double_~x, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);call isinf_double_#t~mem6 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, ~bvadd32(4bv32, isinf_double_~#ew_u~1.offset), 4bv32);isinf_double_~hx~0 := isinf_double_#t~mem6;call write~intFLOATTYPE8(isinf_double_#t~union7, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~union7;havoc isinf_double_#t~mem6;call isinf_double_#t~mem8 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 4bv32);isinf_double_~lx~0 := isinf_double_#t~mem8;call write~intFLOATTYPE8(isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~mem8;havoc isinf_double_#t~union9;call ULTIMATE.dealloc(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset);havoc isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset; {305#false} is VALID [2020-07-28 17:43:12,900 INFO L280 TraceCheckUtils]: 10: Hoare triple {305#false} goto; {305#false} is VALID [2020-07-28 17:43:12,900 INFO L280 TraceCheckUtils]: 11: Hoare triple {305#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {305#false} is VALID [2020-07-28 17:43:12,901 INFO L280 TraceCheckUtils]: 12: Hoare triple {305#false} main_#t~ret11 := isinf_double_#res; {305#false} is VALID [2020-07-28 17:43:12,901 INFO L280 TraceCheckUtils]: 13: Hoare triple {305#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {305#false} is VALID [2020-07-28 17:43:12,901 INFO L280 TraceCheckUtils]: 14: Hoare triple {305#false} assume !false; {305#false} is VALID [2020-07-28 17:43:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:12,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:43:13,153 INFO L280 TraceCheckUtils]: 14: Hoare triple {305#false} assume !false; {305#false} is VALID [2020-07-28 17:43:13,154 INFO L280 TraceCheckUtils]: 13: Hoare triple {305#false} assume 0bv32 == main_#t~ret11;havoc main_#t~ret11; {305#false} is VALID [2020-07-28 17:43:13,154 INFO L280 TraceCheckUtils]: 12: Hoare triple {305#false} main_#t~ret11 := isinf_double_#res; {305#false} is VALID [2020-07-28 17:43:13,155 INFO L280 TraceCheckUtils]: 11: Hoare triple {305#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {305#false} is VALID [2020-07-28 17:43:13,155 INFO L280 TraceCheckUtils]: 10: Hoare triple {305#false} goto; {305#false} is VALID [2020-07-28 17:43:13,156 INFO L280 TraceCheckUtils]: 9: Hoare triple {305#false} call isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(isinf_double_~x, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);call isinf_double_#t~mem6 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, ~bvadd32(4bv32, isinf_double_~#ew_u~1.offset), 4bv32);isinf_double_~hx~0 := isinf_double_#t~mem6;call write~intFLOATTYPE8(isinf_double_#t~union7, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~union7;havoc isinf_double_#t~mem6;call isinf_double_#t~mem8 := read~intINTTYPE4(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 4bv32);isinf_double_~lx~0 := isinf_double_#t~mem8;call write~intFLOATTYPE8(isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, 8bv32);havoc isinf_double_#t~mem8;havoc isinf_double_#t~union9;call ULTIMATE.dealloc(isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset);havoc isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset; {305#false} is VALID [2020-07-28 17:43:13,156 INFO L280 TraceCheckUtils]: 8: Hoare triple {305#false} main_#t~ret10 := ceil_double_#res;main_~res~0 := main_#t~ret10;havoc main_#t~ret10;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem6, isinf_double_#t~union7, isinf_double_#t~mem8, isinf_double_#t~union9, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {305#false} is VALID [2020-07-28 17:43:13,157 INFO L280 TraceCheckUtils]: 7: Hoare triple {305#false} assume 0bv32 == ~bvor32(~bvand32(ceil_double_~i0~0, ceil_double_~i~0), ceil_double_~i1~0);ceil_double_#res := ceil_double_~x; {305#false} is VALID [2020-07-28 17:43:13,157 INFO L280 TraceCheckUtils]: 6: Hoare triple {305#false} assume !~bvslt32(ceil_double_~j0~0, 0bv32);ceil_double_~i~0 := ~bvashr32(1048575bv32, ceil_double_~j0~0); {305#false} is VALID [2020-07-28 17:43:13,158 INFO L280 TraceCheckUtils]: 5: Hoare triple {381#(not (bvslt ULTIMATE.start_ceil_double_~j0~0 (_ bv20 32)))} assume ~bvslt32(ceil_double_~j0~0, 20bv32); {305#false} is VALID [2020-07-28 17:43:13,160 INFO L280 TraceCheckUtils]: 4: Hoare triple {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_ceil_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} ceil_double_~j0~0 := ~bvsub32(~bvand32(2047bv32, ~bvashr32(ceil_double_~i0~0, 20bv32)), 1023bv32); {381#(not (bvslt ULTIMATE.start_ceil_double_~j0~0 (_ bv20 32)))} is VALID [2020-07-28 17:43:13,165 INFO L280 TraceCheckUtils]: 3: Hoare triple {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_ceil_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} goto; {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_ceil_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} is VALID [2020-07-28 17:43:13,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {392#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (or (not (= ULTIMATE.start_ceil_double_~x (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))))} call ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(ceil_double_~x, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 8bv32);call ceil_double_#t~mem0 := read~intINTTYPE4(ceil_double_~#ew_u~0.base, ~bvadd32(4bv32, ceil_double_~#ew_u~0.offset), 4bv32);ceil_double_~i0~0 := ceil_double_#t~mem0;call write~intFLOATTYPE8(ceil_double_#t~union1, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 8bv32);havoc ceil_double_#t~union1;havoc ceil_double_#t~mem0;call ceil_double_#t~mem2 := read~intINTTYPE4(ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 4bv32);ceil_double_~i1~0 := ceil_double_#t~mem2;call write~intFLOATTYPE8(ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, 8bv32);havoc ceil_double_#t~mem2;havoc ceil_double_#t~union3;call ULTIMATE.dealloc(ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset);havoc ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset; {385#(not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ULTIMATE.start_ceil_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))} is VALID [2020-07-28 17:43:13,182 INFO L280 TraceCheckUtils]: 1: Hoare triple {304#true} havoc main_#res;havoc main_#t~ret10, main_#t~ret11, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0)), ~Pluszero~DOUBLE());ceil_double_#in~x := main_~x~0;havoc ceil_double_#res;havoc ceil_double_#t~mem0, ceil_double_#t~union1, ceil_double_#t~mem2, ceil_double_#t~union3, ceil_double_~#ew_u~0.base, ceil_double_~#ew_u~0.offset, ceil_double_#t~mem4, ceil_double_#t~union5.lsw, ceil_double_#t~union5.msw, ceil_double_~#iw_u~0.base, ceil_double_~#iw_u~0.offset, ceil_double_~x, ceil_double_~i0~0, ceil_double_~i1~0, ceil_double_~j0~0, ceil_double_~i~0, ceil_double_~j~0;ceil_double_~x := ceil_double_#in~x;havoc ceil_double_~i0~0;havoc ceil_double_~i1~0;havoc ceil_double_~j0~0;havoc ceil_double_~i~0;havoc ceil_double_~j~0; {392#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (or (not (= ULTIMATE.start_ceil_double_~x (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32)))))} is VALID [2020-07-28 17:43:13,183 INFO L280 TraceCheckUtils]: 0: Hoare triple {304#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300); {304#true} is VALID [2020-07-28 17:43:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:43:13,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593796711] [2020-07-28 17:43:13,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:43:13,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:43:13,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470225805] [2020-07-28 17:43:13,188 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:43:13,189 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:43:13,189 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:43:13,264 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:13,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:43:13,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:43:13,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:43:13,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:43:13,266 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-07-28 17:43:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:14,110 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-07-28 17:43:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:43:14,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:43:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:43:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:43:14,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2020-07-28 17:43:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:43:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2020-07-28 17:43:14,115 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 55 transitions. [2020-07-28 17:43:14,531 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:14,533 INFO L225 Difference]: With dead ends: 42 [2020-07-28 17:43:14,533 INFO L226 Difference]: Without dead ends: 16 [2020-07-28 17:43:14,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:43:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-28 17:43:14,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-28 17:43:14,552 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:14,552 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2020-07-28 17:43:14,552 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:43:14,552 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:43:14,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:14,554 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:43:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:43:14,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:14,555 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:14,555 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:43:14,555 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:43:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:14,557 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:43:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:43:14,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:14,558 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:14,558 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:14,559 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-28 17:43:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-07-28 17:43:14,560 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-07-28 17:43:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:14,561 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-07-28 17:43:14,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:43:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:43:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:43:14,562 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:14,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:14,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:43:14,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:14,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-07-28 17:43:14,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:14,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754698586] [2020-07-28 17:43:14,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-07-28 17:43:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:14,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:15,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:15,116 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:43:15,116 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:43:15,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:43:15,365 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:43:15,365 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:43:15,366 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 17:43:15,366 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 17:43:15,366 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:43:15,366 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:43:15,367 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-28 17:43:15,367 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:43:15,367 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:43:15,367 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:43:15,367 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:43:15,368 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:43:15,368 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:43:15,368 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:43:15,368 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:43:15,368 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-28 17:43:15,371 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-28 17:43:15,374 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 17:43:15,375 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 17:43:15,375 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-28 17:43:15,375 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-28 17:43:15,375 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:43:15,375 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:43:15,376 WARN L170 areAnnotationChecker]: L71-1 has no Hoare annotation [2020-07-28 17:43:15,376 WARN L170 areAnnotationChecker]: L71-1 has no Hoare annotation [2020-07-28 17:43:15,376 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-28 17:43:15,376 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:43:15,377 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:43:15,377 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:43:15,377 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:43:15,377 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:43:15,377 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:43:15,379 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:43:15,379 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:43:15,379 WARN L170 areAnnotationChecker]: L71-2 has no Hoare annotation [2020-07-28 17:43:15,380 WARN L170 areAnnotationChecker]: L83-2 has no Hoare annotation [2020-07-28 17:43:15,380 WARN L170 areAnnotationChecker]: L83-2 has no Hoare annotation [2020-07-28 17:43:15,380 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:43:15,380 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:43:15,380 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L83-1 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L83-1 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L83-3 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-28 17:43:15,381 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L63-2 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2020-07-28 17:43:15,382 WARN L170 areAnnotationChecker]: L112 has no Hoare annotation [2020-07-28 17:43:15,383 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:43:15,383 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:43:15,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:43:15 BoogieIcfgContainer [2020-07-28 17:43:15,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:43:15,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:43:15,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:43:15,387 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:43:15,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:43:10" (3/4) ... [2020-07-28 17:43:15,389 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:43:15,459 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:43:15,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:43:15,463 INFO L168 Benchmark]: Toolchain (without parser) took 7518.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.2 MB in the beginning and 896.9 MB in the end (delta: 59.3 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,464 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:15,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.62 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. [2020-07-28 17:43:15,466 INFO L168 Benchmark]: Boogie Preprocessor took 45.28 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. [2020-07-28 17:43:15,467 INFO L168 Benchmark]: RCFGBuilder took 1717.70 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: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,468 INFO L168 Benchmark]: TraceAbstraction took 5228.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 896.9 MB in the end (delta: 191.3 MB). Peak memory consumption was 191.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:15,469 INFO L168 Benchmark]: Witness Printer took 73.14 ms. Allocated memory is still 1.2 GB. Free memory is still 896.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:15,474 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 378.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.62 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 45.28 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 1717.70 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: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5228.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 896.9 MB in the end (delta: 191.3 MB). Peak memory consumption was 191.3 MB. Max. memory is 11.5 GB. * Witness Printer took 73.14 ms. Allocated memory is still 1.2 GB. Free memory is still 896.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 108]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_ceil=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_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L48] COND TRUE j0 > 51 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 == 0x400 [L50] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = ceil_double(x); [L82] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L84] ieee_double_shape_type ew_u; [L85] ew_u.value = (x) [L86] EXPR ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L107] COND TRUE !isinf_double(res) [L108] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 45 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2332 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...