./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121a.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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ............................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121a.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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:50:50,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:50:50,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:50:50,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:50:50,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:50:50,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:50:50,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:50:50,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:50:50,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:50:50,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:50:50,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:50:50,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:50:50,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:50:50,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:50:50,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:50:50,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:50:50,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:50:50,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:50:50,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:50:50,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:50:50,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:50:50,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:50:50,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:50:50,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:50:50,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:50:50,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:50:50,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:50:50,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:50:50,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:50:50,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:50:50,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:50:50,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:50:50,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:50:50,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:50:50,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:50:50,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:50:50,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:50:50,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:50:50,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:50:50,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:50:50,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:50:50,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:50:50,311 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:50:50,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:50:50,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:50:50,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:50:50,314 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:50:50,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:50:50,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:50:50,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:50:50,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:50:50,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:50:50,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:50:50,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:50:50,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:50:50,317 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:50:50,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:50:50,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:50:50,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:50:50,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:50:50,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:50:50,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:50:50,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:50:50,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:50:50,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:50:50,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:50:50,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:50:50,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:50:50,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:50:50,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:50:50,320 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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-11-27 23:50:50,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:50:50,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:50:50,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:50:50,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:50:50,652 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:50:50,652 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-27 23:50:50,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae4587c27/7b5daf98eb874cc5986b58e7546c9701/FLAG068a22f01 [2019-11-27 23:50:51,177 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:50:51,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-27 23:50:51,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae4587c27/7b5daf98eb874cc5986b58e7546c9701/FLAG068a22f01 [2019-11-27 23:50:51,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae4587c27/7b5daf98eb874cc5986b58e7546c9701 [2019-11-27 23:50:51,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:50:51,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:50:51,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:50:51,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:50:51,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:50:51,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:51,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116d978d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51, skipping insertion in model container [2019-11-27 23:50:51,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:51,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:50:51,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:50:51,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:50:51,914 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:50:51,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:50:51,986 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:50:51,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51 WrapperNode [2019-11-27 23:50:51,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:50:51,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:50:51,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:50:51,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:50:51,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:50:52,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:50:52,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:50:52,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:50:52,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... [2019-11-27 23:50:52,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:50:52,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:50:52,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:50:52,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:50:52,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:50:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:50:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:50:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:50:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:50:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:50:52,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:50:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:50:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-27 23:50:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:50:52,565 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:50:52,565 INFO L297 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-27 23:50:52,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:50:52 BoogieIcfgContainer [2019-11-27 23:50:52,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:50:52,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:50:52,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:50:52,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:50:52,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:50:51" (1/3) ... [2019-11-27 23:50:52,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396a2a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:50:52, skipping insertion in model container [2019-11-27 23:50:52,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:51" (2/3) ... [2019-11-27 23:50:52,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396a2a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:50:52, skipping insertion in model container [2019-11-27 23:50:52,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:50:52" (3/3) ... [2019-11-27 23:50:52,574 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-11-27 23:50:52,583 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:50:52,590 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:50:52,601 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:50:52,627 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:50:52,627 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:50:52,627 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:50:52,628 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:50:52,628 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:50:52,628 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:50:52,628 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:50:52,628 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:50:52,643 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-27 23:50:52,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:50:52,649 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:50:52,650 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:50:52,650 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:50:52,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:50:52,655 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-27 23:50:52,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:50:52,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309326356] [2019-11-27 23:50:52,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:50:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:50:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:50:52,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309326356] [2019-11-27 23:50:52,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:50:52,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:50:52,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482145336] [2019-11-27 23:50:52,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:50:52,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:50:52,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:50:52,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:50:52,820 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-27 23:50:52,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:50:52,860 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-27 23:50:52,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:50:52,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 23:50:52,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:50:52,879 INFO L225 Difference]: With dead ends: 82 [2019-11-27 23:50:52,880 INFO L226 Difference]: Without dead ends: 39 [2019-11-27 23:50:52,886 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:50:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-27 23:50:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-27 23:50:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-27 23:50:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-27 23:50:52,942 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-27 23:50:52,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:50:52,942 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-27 23:50:52,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:50:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-27 23:50:52,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:50:52,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:50:52,945 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:50:52,946 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:50:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:50:52,947 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-27 23:50:52,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:50:52,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305554238] [2019-11-27 23:50:52,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:50:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:50:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:50:53,192 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:50:53,193 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:50:53,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:50:53 BoogieIcfgContainer [2019-11-27 23:50:53,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:50:53,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:50:53,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:50:53,244 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:50:53,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:50:52" (3/4) ... [2019-11-27 23:50:53,249 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:50:53,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:50:53,253 INFO L168 Benchmark]: Toolchain (without parser) took 1696.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -106.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:53,254 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:50:53,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:53,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:50:53,258 INFO L168 Benchmark]: Boogie Preprocessor took 33.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:53,259 INFO L168 Benchmark]: RCFGBuilder took 489.11 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:53,260 INFO L168 Benchmark]: TraceAbstraction took 675.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:53,261 INFO L168 Benchmark]: Witness Printer took 5.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:50:53,278 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.48 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. * RCFGBuilder took 489.11 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 675.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = 0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:50:55,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:50:55,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:50:55,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:50:55,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:50:55,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:50:55,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:50:55,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:50:55,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:50:55,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:50:55,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:50:55,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:50:55,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:50:55,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:50:55,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:50:55,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:50:55,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:50:55,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:50:55,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:50:55,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:50:55,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:50:55,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:50:55,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:50:55,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:50:55,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:50:55,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:50:55,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:50:55,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:50:55,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:50:55,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:50:55,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:50:55,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:50:55,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:50:55,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:50:55,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:50:55,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:50:55,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:50:55,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:50:55,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:50:55,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:50:55,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:50:55,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:50:55,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:50:55,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:50:55,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:50:55,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:50:55,263 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:50:55,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:50:55,263 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:50:55,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:50:55,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:50:55,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:50:55,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:50:55,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:50:55,265 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:50:55,265 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:50:55,266 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:50:55,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:50:55,266 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:50:55,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:50:55,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:50:55,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:50:55,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:50:55,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:50:55,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:50:55,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:50:55,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:50:55,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:50:55,269 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:50:55,269 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:50:55,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:50:55,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:50:55,270 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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-11-27 23:50:55,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:50:55,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:50:55,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:50:55,602 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:50:55,603 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:50:55,604 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-27 23:50:55,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d23c2952/6c50f1ed4a7f49c4bd32f46878dbf3dc/FLAG2b2c26d23 [2019-11-27 23:50:56,110 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:50:56,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-11-27 23:50:56,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d23c2952/6c50f1ed4a7f49c4bd32f46878dbf3dc/FLAG2b2c26d23 [2019-11-27 23:50:56,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d23c2952/6c50f1ed4a7f49c4bd32f46878dbf3dc [2019-11-27 23:50:56,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:50:56,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:50:56,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:50:56,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:50:56,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:50:56,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f41f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56, skipping insertion in model container [2019-11-27 23:50:56,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:50:56,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:50:56,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:50:56,807 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:50:56,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:50:56,933 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:50:56,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56 WrapperNode [2019-11-27 23:50:56,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:50:56,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:50:56,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:50:56,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:50:56,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:50:56,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:50:56,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:50:56,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:50:56,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:56,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:57,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:57,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:57,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... [2019-11-27 23:50:57,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:50:57,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:50:57,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:50:57,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:50:57,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:50:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-27 23:50:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:50:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-27 23:50:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:50:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:50:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:50:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-27 23:50:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:50:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:50:59,385 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:50:59,385 INFO L297 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-27 23:50:59,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:50:59 BoogieIcfgContainer [2019-11-27 23:50:59,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:50:59,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:50:59,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:50:59,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:50:59,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:50:56" (1/3) ... [2019-11-27 23:50:59,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ed16d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:50:59, skipping insertion in model container [2019-11-27 23:50:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:50:56" (2/3) ... [2019-11-27 23:50:59,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ed16d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:50:59, skipping insertion in model container [2019-11-27 23:50:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:50:59" (3/3) ... [2019-11-27 23:50:59,394 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-11-27 23:50:59,403 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:50:59,409 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:50:59,418 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:50:59,439 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:50:59,439 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:50:59,439 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:50:59,440 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:50:59,440 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:50:59,440 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:50:59,440 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:50:59,440 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:50:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-27 23:50:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:50:59,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:50:59,461 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:50:59,462 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:50:59,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:50:59,468 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-27 23:50:59,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:50:59,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819441801] [2019-11-27 23:50:59,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-27 23:50:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:50:59,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:50:59,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:50:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:50:59,794 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:50:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:50:59,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819441801] [2019-11-27 23:50:59,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:50:59,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:50:59,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596022233] [2019-11-27 23:50:59,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:50:59,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:50:59,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:50:59,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:50:59,820 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-27 23:50:59,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:50:59,839 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-27 23:50:59,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:50:59,841 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 23:50:59,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:50:59,852 INFO L225 Difference]: With dead ends: 82 [2019-11-27 23:50:59,853 INFO L226 Difference]: Without dead ends: 39 [2019-11-27 23:50:59,856 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:50:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-27 23:50:59,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-27 23:50:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-27 23:50:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-27 23:50:59,895 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-27 23:50:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:50:59,896 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-27 23:50:59,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:50:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-27 23:50:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:50:59,897 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:50:59,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:51:00,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:51:00,111 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:51:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:51:00,112 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-27 23:51:00,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:51:00,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758753180] [2019-11-27 23:51:00,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:51:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:51:00,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-27 23:51:00,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:51:01,666 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-27 23:51:01,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:51:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:51:02,894 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:51:06,346 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-27 23:51:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:51:06,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758753180] [2019-11-27 23:51:06,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:51:06,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-27 23:51:06,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274447205] [2019-11-27 23:51:06,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-27 23:51:06,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:51:06,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-27 23:51:06,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-11-27 23:51:06,738 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-11-27 23:51:08,975 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-27 23:51:12,815 WARN L192 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2019-11-27 23:51:15,649 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-11-27 23:51:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:51:15,893 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-27 23:51:15,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:51:15,893 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-11-27 23:51:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:51:15,895 INFO L225 Difference]: With dead ends: 44 [2019-11-27 23:51:15,895 INFO L226 Difference]: Without dead ends: 39 [2019-11-27 23:51:15,896 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2019-11-27 23:51:15,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-27 23:51:15,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-27 23:51:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-27 23:51:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-27 23:51:15,903 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-27 23:51:15,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:51:15,903 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-27 23:51:15,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-27 23:51:15,904 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-27 23:51:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-27 23:51:15,904 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:51:15,905 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:51:16,105 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:51:16,106 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:51:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:51:16,107 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-27 23:51:16,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:51:16,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592597049] [2019-11-27 23:51:16,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-27 23:51:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:51:16,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:51:16,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:51:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:51:16,257 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:51:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:51:16,312 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592597049] [2019-11-27 23:51:16,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:51:16,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2019-11-27 23:51:16,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196906168] [2019-11-27 23:51:16,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-27 23:51:16,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:51:16,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-27 23:51:16,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:51:16,314 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-11-27 23:51:16,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:51:16,345 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-27 23:51:16,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:51:16,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-11-27 23:51:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:51:16,347 INFO L225 Difference]: With dead ends: 39 [2019-11-27 23:51:16,347 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:51:16,348 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-27 23:51:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:51:16,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:51:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:51:16,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:51:16,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-27 23:51:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:51:16,349 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:51:16,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-27 23:51:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:51:16,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:51:16,557 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:51:16,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:51:17,406 WARN L192 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-11-27 23:51:18,595 WARN L192 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2019-11-27 23:51:18,600 INFO L246 CegarLoopResult]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-27 23:51:18,600 INFO L246 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-27 23:51:18,600 INFO L249 CegarLoopResult]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-11-27 23:51:18,601 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:51:18,601 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:51:18,601 INFO L246 CegarLoopResult]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-27 23:51:18,601 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-27 23:51:18,601 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:51:18,601 INFO L246 CegarLoopResult]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-27 23:51:18,601 INFO L246 CegarLoopResult]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-27 23:51:18,602 INFO L242 CegarLoopResult]: At program point L104(lines 17 105) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) [2019-11-27 23:51:18,602 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-27 23:51:18,602 INFO L246 CegarLoopResult]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-27 23:51:18,602 INFO L242 CegarLoopResult]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-27 23:51:18,602 INFO L246 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-27 23:51:18,602 INFO L242 CegarLoopResult]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-27 23:51:18,602 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-27 23:51:18,602 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:51:18,603 INFO L246 CegarLoopResult]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-27 23:51:18,604 INFO L246 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2019-11-27 23:51:18,604 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-11-27 23:51:18,604 INFO L242 CegarLoopResult]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-27 23:51:18,604 INFO L246 CegarLoopResult]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-27 23:51:18,604 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-27 23:51:18,604 INFO L242 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-27 23:51:18,605 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:51:18,605 INFO L246 CegarLoopResult]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-27 23:51:18,605 INFO L246 CegarLoopResult]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-27 23:51:18,605 INFO L246 CegarLoopResult]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-27 23:51:18,605 INFO L246 CegarLoopResult]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-27 23:51:18,606 INFO L242 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-11-27 23:51:18,606 INFO L246 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-27 23:51:18,606 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-27 23:51:18,606 INFO L242 CegarLoopResult]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-27 23:51:18,606 INFO L246 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-27 23:51:18,606 INFO L246 CegarLoopResult]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-27 23:51:18,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,623 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,624 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,624 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,629 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,630 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,630 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:51:18,636 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:51:18,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:51:18 BoogieIcfgContainer [2019-11-27 23:51:18,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:51:18,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:51:18,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:51:18,647 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:51:18,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:50:59" (3/4) ... [2019-11-27 23:51:18,651 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:51:18,670 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-27 23:51:18,671 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 23:51:18,671 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:51:18,745 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:51:18,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:51:18,747 INFO L168 Benchmark]: Toolchain (without parser) took 22230.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.4 MB in the beginning and 990.9 MB in the end (delta: -30.5 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:51:18,748 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:51:18,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:51:18,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:51:18,756 INFO L168 Benchmark]: Boogie Preprocessor took 42.05 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. [2019-11-27 23:51:18,760 INFO L168 Benchmark]: RCFGBuilder took 2360.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:51:18,761 INFO L168 Benchmark]: TraceAbstraction took 19258.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.4 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:51:18,762 INFO L168 Benchmark]: Witness Printer took 99.45 ms. Allocated memory is still 1.2 GB. Free memory was 997.4 MB in the beginning and 990.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:51:18,768 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 416.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.05 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. * RCFGBuilder took 2360.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19258.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.4 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. * Witness Printer took 99.45 ms. Allocated memory is still 1.2 GB. Free memory was 997.4 MB in the beginning and 990.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-27 23:51:18,785 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,785 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,788 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,788 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,788 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-11-27 23:51:18,789 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,789 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-11-27 23:51:18,790 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:51:18,791 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:51:18,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 17.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, HoareTripleCheckerStatistics: 112 SDtfs, 8 SDslu, 219 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 35 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 10 QuantifiedInterpolants, 4565 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...