./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:04:42,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:04:42,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:04:42,711 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:04:42,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:04:42,713 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:04:42,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:04:42,716 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:04:42,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:04:42,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:04:42,720 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:04:42,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:04:42,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:04:42,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:04:42,724 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:04:42,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:04:42,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:04:42,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:04:42,729 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:04:42,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:04:42,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:04:42,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:04:42,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:04:42,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:04:42,737 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:04:42,738 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:04:42,739 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:04:42,740 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:04:42,741 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:04:42,742 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:04:42,742 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:04:42,743 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:04:42,743 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:04:42,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:04:42,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:04:42,746 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:04:42,746 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:04:42,762 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:04:42,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:04:42,763 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:04:42,763 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:04:42,764 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:04:42,764 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:04:42,764 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:04:42,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:04:42,765 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:04:42,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:04:42,766 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:04:42,766 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:04:42,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:04:42,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:04:42,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:04:42,767 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:04:42,767 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:04:42,767 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:04:42,767 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:04:42,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:04:42,768 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:04:42,768 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:04:42,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:04:42,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:04:42,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:04:42,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:04:42,769 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:04:42,769 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:04:42,769 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:04:42,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:04:42,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2018-11-28 18:04:42,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:04:42,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:04:42,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:04:42,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:04:42,838 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:04:42,839 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-28 18:04:42,901 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c891320c5/d60e165024904f148bf265997fa9b76e/FLAG72b955e17 [2018-11-28 18:04:43,342 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:04:43,343 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-28 18:04:43,351 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c891320c5/d60e165024904f148bf265997fa9b76e/FLAG72b955e17 [2018-11-28 18:04:43,722 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c891320c5/d60e165024904f148bf265997fa9b76e [2018-11-28 18:04:43,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:04:43,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:04:43,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:43,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:04:43,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:04:43,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:43" (1/1) ... [2018-11-28 18:04:43,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2361a420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:43, skipping insertion in model container [2018-11-28 18:04:43,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:43" (1/1) ... [2018-11-28 18:04:43,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:04:43,781 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:04:44,063 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:44,077 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:04:44,125 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:44,145 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:04:44,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44 WrapperNode [2018-11-28 18:04:44,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:44,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:44,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:04:44,147 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:04:44,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:44,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:04:44,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:04:44,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:04:44,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... [2018-11-28 18:04:44,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:04:44,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:04:44,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:04:44,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:04:44,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:04:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:04:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:04:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 18:04:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 18:04:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:04:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:04:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:04:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:04:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:04:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:04:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:04:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:04:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:04:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-11-28 18:04:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-11-28 18:04:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:04:45,362 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:04:45,363 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-11-28 18:04:45,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:45 BoogieIcfgContainer [2018-11-28 18:04:45,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:04:45,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:04:45,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:04:45,369 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:04:45,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:04:43" (1/3) ... [2018-11-28 18:04:45,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18afb445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:45, skipping insertion in model container [2018-11-28 18:04:45,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:44" (2/3) ... [2018-11-28 18:04:45,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18afb445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:45, skipping insertion in model container [2018-11-28 18:04:45,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:45" (3/3) ... [2018-11-28 18:04:45,374 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-11-28 18:04:45,384 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:04:45,392 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:04:45,409 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:04:45,452 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:04:45,452 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:04:45,452 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:04:45,453 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:04:45,453 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:04:45,453 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:04:45,453 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:04:45,453 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:04:45,454 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:04:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-11-28 18:04:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:04:45,483 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:45,484 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:45,486 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:45,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:45,492 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2018-11-28 18:04:45,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:04:45,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:04:45,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:45,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:45,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:45,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:45,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:04:45,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:04:45,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:04:45,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:45,676 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-11-28 18:04:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:45,714 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-11-28 18:04:45,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:04:45,716 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-28 18:04:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:45,737 INFO L225 Difference]: With dead ends: 108 [2018-11-28 18:04:45,739 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 18:04:45,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 18:04:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 18:04:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 18:04:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-28 18:04:45,812 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-11-28 18:04:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:45,812 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-28 18:04:45,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:04:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-28 18:04:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 18:04:45,815 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:45,816 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:45,816 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:45,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:45,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2018-11-28 18:04:45,817 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:04:45,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:04:45,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:45,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:45,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:45,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:45,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:04:45,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:04:45,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:04:45,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:45,947 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 3 states. [2018-11-28 18:04:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:46,007 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-11-28 18:04:46,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:04:46,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-11-28 18:04:46,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:46,012 INFO L225 Difference]: With dead ends: 57 [2018-11-28 18:04:46,012 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 18:04:46,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 18:04:46,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 18:04:46,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 18:04:46,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-11-28 18:04:46,024 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 27 [2018-11-28 18:04:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:46,026 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-11-28 18:04:46,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:04:46,026 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-11-28 18:04:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 18:04:46,030 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:46,030 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:46,032 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:46,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:46,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1590755806, now seen corresponding path program 1 times [2018-11-28 18:04:46,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:04:46,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:04:46,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:46,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:46,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:04:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:04:46,227 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:04:46,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:04:46 BoogieIcfgContainer [2018-11-28 18:04:46,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:04:46,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:04:46,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:04:46,286 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:04:46,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:45" (3/4) ... [2018-11-28 18:04:46,294 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:04:46,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:04:46,295 INFO L168 Benchmark]: Toolchain (without parser) took 2568.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 952.7 MB in the beginning and 984.4 MB in the end (delta: -31.7 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:46,298 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:46,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.20 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 935.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:46,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.88 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:46,301 INFO L168 Benchmark]: Boogie Preprocessor took 143.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:46,302 INFO L168 Benchmark]: RCFGBuilder took 1039.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:46,304 INFO L168 Benchmark]: TraceAbstraction took 920.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 984.4 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:46,305 INFO L168 Benchmark]: Witness Printer took 8.27 ms. Allocated memory is still 1.1 GB. Free memory is still 984.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:46,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 417.20 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 935.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.88 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 143.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1039.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 920.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 984.4 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. * Witness Printer took 8.27 ms. Allocated memory is still 1.1 GB. Free memory is still 984.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=10737418246, one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={10737418250:0}, one_modf=1] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=10737418254, iptr={10737418250:0}, one_modf=1] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=10737418254, iptr={10737418250:0}, iptr={10737418250:0}, one_modf=1, x=10737418254] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, one_modf=1, x=10737418254] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L30] COND TRUE j0 < 0 VAL [\old(x)=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [\old(x)=10737418254, \result=10737418254, i0=-2147483648, i1=-2147483648, iptr={10737418250:0}, iptr={10737418250:0}, j0=-1, one_modf=1, x=10737418254] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={10737418250:0}, modf_double(x, &iptr)=10737418254, one_modf=1, x=10737418254] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, one_modf=1, res=10737418254, x=10737418254] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=10737418242, one_modf=1] [L15] return x != x; VAL [\old(x)=10737418242, \result=1, one_modf=1, x=10737418242] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, one_modf=1, res=10737418254, x=10737418254] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=10737418254, x=10737418254] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=10737418254, one_modf=1] [L15] return x != x; VAL [\old(x)=10737418254, \result=0, one_modf=1, x=10737418254] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=10737418254, x=10737418254] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=10737418242, iptr={10737418250:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=10737418254, x=10737418254] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={10737418250:0}, one_modf=1, res=10737418254, x=10737418254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 18:04:48,746 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-11-28 18:04:48,815 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:04:48,815 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:04:48,816 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:04:48,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:04:48,820 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:04:48,821 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:04:48,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:04:48,824 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:04:48,825 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:04:48,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:04:48,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:04:48,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:04:48,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:04:48,829 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:04:48,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:04:48,857 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:04:48,860 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:04:48,860 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:04:48,861 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:04:48,861 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:04:48,862 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:04:48,862 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:04:48,862 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:04:48,862 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:04:48,862 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:04:48,862 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:04:48,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:04:48,864 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:04:48,864 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:04:48,864 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:04:48,864 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:04:48,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:04:48,865 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:04:48,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:04:48,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:04:48,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:04:48,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:04:48,867 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:04:48,867 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:04:48,867 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:04:48,868 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:04:48,868 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:04:48,868 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:04:48,868 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:04:48,868 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:04:48,868 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:04:48,869 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2018-11-28 18:04:48,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:04:48,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:04:48,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:04:48,955 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:04:48,956 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:04:48,957 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-28 18:04:49,027 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf1df6d8/c16829e260764c7b877aa342880f38f1/FLAGddad7790e [2018-11-28 18:04:49,510 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:04:49,510 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1210_false-unreach-call.c [2018-11-28 18:04:49,517 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf1df6d8/c16829e260764c7b877aa342880f38f1/FLAGddad7790e [2018-11-28 18:04:49,858 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf1df6d8/c16829e260764c7b877aa342880f38f1 [2018-11-28 18:04:49,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:04:49,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:04:49,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:49,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:04:49,870 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:04:49,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:49" (1/1) ... [2018-11-28 18:04:49,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683673d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:49, skipping insertion in model container [2018-11-28 18:04:49,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:49" (1/1) ... [2018-11-28 18:04:49,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:04:49,908 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:04:50,168 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:50,191 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:04:50,236 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:50,258 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:04:50,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50 WrapperNode [2018-11-28 18:04:50,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:50,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:50,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:04:50,259 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:04:50,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:50,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:04:50,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:04:50,315 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:04:50,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... [2018-11-28 18:04:50,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:04:50,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:04:50,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:04:50,510 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:04:50,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:04:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 18:04:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 18:04:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 18:04:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:04:50,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:04:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:04:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:04:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 18:04:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:04:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:04:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:04:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:04:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-11-28 18:04:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-11-28 18:04:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:04:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:04:51,044 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,085 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,176 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,211 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,360 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,376 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,405 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:51,467 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:52,018 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:52,046 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:52,082 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:04:52,083 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-11-28 18:04:52,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:52 BoogieIcfgContainer [2018-11-28 18:04:52,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:04:52,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:04:52,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:04:52,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:04:52,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:04:49" (1/3) ... [2018-11-28 18:04:52,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a08658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:52, skipping insertion in model container [2018-11-28 18:04:52,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:50" (2/3) ... [2018-11-28 18:04:52,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a08658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:52, skipping insertion in model container [2018-11-28 18:04:52,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:52" (3/3) ... [2018-11-28 18:04:52,099 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210_false-unreach-call.c [2018-11-28 18:04:52,107 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:04:52,115 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:04:52,133 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:04:52,168 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:04:52,168 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:04:52,169 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:04:52,169 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:04:52,169 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:04:52,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:04:52,169 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:04:52,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:04:52,170 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:04:52,188 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-11-28 18:04:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:04:52,195 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:52,196 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:52,198 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:52,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:52,204 INFO L82 PathProgramCache]: Analyzing trace with hash 204549601, now seen corresponding path program 1 times [2018-11-28 18:04:52,208 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:52,208 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 18:04:52,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:52,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:52,351 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:52,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:52,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:04:52,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:04:52,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:04:52,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:52,407 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-11-28 18:04:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:52,457 INFO L93 Difference]: Finished difference Result 108 states and 162 transitions. [2018-11-28 18:04:52,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:04:52,459 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-28 18:04:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:52,474 INFO L225 Difference]: With dead ends: 108 [2018-11-28 18:04:52,476 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 18:04:52,480 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 18:04:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 18:04:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 18:04:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-28 18:04:52,544 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 25 [2018-11-28 18:04:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:52,544 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-28 18:04:52,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:04:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-28 18:04:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 18:04:52,547 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:52,547 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:52,548 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:52,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:52,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1987482264, now seen corresponding path program 1 times [2018-11-28 18:04:52,549 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:52,549 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:04:52,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:52,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:53,081 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:53,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:53,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:04:53,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:04:53,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:04:53,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:04:53,099 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-11-28 18:04:53,797 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-28 18:04:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:58,231 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-11-28 18:04:58,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:04:58,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-28 18:04:58,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:58,236 INFO L225 Difference]: With dead ends: 72 [2018-11-28 18:04:58,236 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 18:04:58,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:04:58,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 18:04:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-11-28 18:04:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 18:04:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-11-28 18:04:58,248 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 27 [2018-11-28 18:04:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:58,248 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-11-28 18:04:58,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:04:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-11-28 18:04:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 18:04:58,250 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:58,250 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:58,250 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:58,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:58,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1705207589, now seen corresponding path program 1 times [2018-11-28 18:04:58,252 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:58,252 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 18:04:58,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:58,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:58,443 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:58,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:58,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:04:58,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:04:58,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:04:58,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:58,462 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 3 states. [2018-11-28 18:04:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:58,499 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-28 18:04:58,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:04:58,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-28 18:04:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:58,502 INFO L225 Difference]: With dead ends: 44 [2018-11-28 18:04:58,502 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 18:04:58,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 18:04:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 18:04:58,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 18:04:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-28 18:04:58,512 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 28 [2018-11-28 18:04:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:58,514 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-28 18:04:58,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:04:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-28 18:04:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 18:04:58,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:58,516 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:58,516 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:58,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:58,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1088160399, now seen corresponding path program 1 times [2018-11-28 18:04:58,517 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:58,517 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 18:04:58,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:58,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:58,996 INFO L303 Elim1Store]: Index analysis took 157 ms [2018-11-28 18:04:59,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2018-11-28 18:04:59,267 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 18:04:59,333 INFO L303 Elim1Store]: Index analysis took 330 ms [2018-11-28 18:04:59,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 25 [2018-11-28 18:04:59,336 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 18:04:59,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 18:04:59,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 18:04:59,936 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2018-11-28 18:05:02,032 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_2 (_ BitVec 32)) (v_arrayElimCell_3 (_ BitVec 32))) (= (fp.sub roundNearestTiesToEven |c_modf_double_#in~x| (let ((.cse0 (concat v_arrayElimCell_3 v_arrayElimCell_2))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0)))) |c_modf_double_#res|)) is different from true [2018-11-28 18:05:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:05:02,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:05:02,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:05:02,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 18:05:02,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 18:05:02,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 18:05:02,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=58, Unknown=1, NotChecked=14, Total=90 [2018-11-28 18:05:02,274 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 10 states. [2018-11-28 18:05:06,703 WARN L180 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 18:05:07,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:05:07,585 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-28 18:05:07,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:05:07,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-11-28 18:05:07,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:05:07,589 INFO L225 Difference]: With dead ends: 52 [2018-11-28 18:05:07,589 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 18:05:07,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=42, Invalid=143, Unknown=1, NotChecked=24, Total=210 [2018-11-28 18:05:07,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 18:05:07,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 18:05:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 18:05:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-11-28 18:05:07,597 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 33 [2018-11-28 18:05:07,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:05:07,597 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-11-28 18:05:07,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 18:05:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-11-28 18:05:07,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 18:05:07,599 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:05:07,599 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:05:07,599 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:05:07,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:05:07,600 INFO L82 PathProgramCache]: Analyzing trace with hash 2004349664, now seen corresponding path program 1 times [2018-11-28 18:05:07,600 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:05:07,600 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 18:05:07,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:05:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:05:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:05:08,735 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:05:08,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:05:08 BoogieIcfgContainer [2018-11-28 18:05:08,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:05:08,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:05:08,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:05:08,808 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:05:08,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:52" (3/4) ... [2018-11-28 18:05:08,812 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:05:08,892 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:05:08,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:05:08,893 INFO L168 Benchmark]: Toolchain (without parser) took 19030.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 948.7 MB in the beginning and 915.7 MB in the end (delta: 33.0 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:05:08,895 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:05:08,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 931.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:05:08,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.55 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:05:08,896 INFO L168 Benchmark]: Boogie Preprocessor took 194.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:05:08,898 INFO L168 Benchmark]: RCFGBuilder took 1573.53 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:05:08,899 INFO L168 Benchmark]: TraceAbstraction took 16722.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.6 MB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:05:08,900 INFO L168 Benchmark]: Witness Printer took 85.02 ms. Allocated memory is still 1.2 GB. Free memory was 922.6 MB in the beginning and 915.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:05:08,906 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 931.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.55 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 194.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1573.53 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16722.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.6 MB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 11.5 GB. * Witness Printer took 85.02 ms. Allocated memory is still 1.2 GB. Free memory was 922.6 MB in the beginning and 915.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [\old(one_modf)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; VAL [iptr={2:0}, one_modf=1.0, x=NaN] [L118] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=NaN, iptr={2:0}, one_modf=1.0] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [\old(x)=NaN, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=NaN] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146959360, i1=0, iptr={2:0}, iptr={2:0}, j0=1024, one_modf=1.0, x=0.0] [L118] RET, EXPR modf_double(x, &iptr) VAL [iptr={2:0}, modf_double(x, &iptr)=0.0, one_modf=1.0, x=NaN] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L15] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L121] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L121] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L15] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L121] RET, EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 58 locations, 1 error locations. UNSAFE Result, 16.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 10.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 179 SDtfs, 142 SDslu, 360 SDs, 0 SdLazy, 170 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 16 QuantifiedInterpolants, 14078 SizeOfPredicates, 12 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...