/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-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 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef ................................................................................................................................................................................................................................................................................................................................ 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-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 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:02:31,112 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:31,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:31,126 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:31,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:31,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:31,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:31,131 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:31,132 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:31,133 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:31,134 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:31,135 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:31,135 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:31,136 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:31,138 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:31,138 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:31,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:31,142 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:31,148 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:31,149 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:31,155 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:31,160 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:31,163 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:31,163 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:31,163 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:31,164 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:31,165 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:31,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:31,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:31,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:31,168 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:31,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:31,169 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:31,169 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:31,170 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:31,170 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:31,171 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:02:31,188 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:31,189 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:31,190 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:31,190 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:31,191 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:31,191 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:31,192 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:31,192 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:31,192 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:31,192 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:02:31,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:31,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:31,193 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:31,193 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:31,193 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:31,193 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:31,194 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:31,194 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:31,194 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:31,194 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:31,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:31,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:31,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:31,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:31,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:31,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:31,197 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:02:31,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:31,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:02:31,198 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 -> 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef [2018-09-20 15:02:31,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:31,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:31,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:31,267 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:31,268 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:31,269 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-unreach-call.c [2018-09-20 15:02:31,616 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa3c54b9/9ae20a637bac4bd891b6845e217fccec/FLAG8ba04a127 [2018-09-20 15:02:31,829 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:31,831 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-unreach-call.c [2018-09-20 15:02:31,844 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa3c54b9/9ae20a637bac4bd891b6845e217fccec/FLAG8ba04a127 [2018-09-20 15:02:31,872 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa3c54b9/9ae20a637bac4bd891b6845e217fccec [2018-09-20 15:02:31,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:31,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:31,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:31,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:31,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:31,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:31" (1/1) ... [2018-09-20 15:02:31,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656d1288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:31, skipping insertion in model container [2018-09-20 15:02:31,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:31" (1/1) ... [2018-09-20 15:02:31,919 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:32,183 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:32,204 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:32,259 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:32,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32 WrapperNode [2018-09-20 15:02:32,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:32,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:32,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:32,300 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:32,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (1/1) ... [2018-09-20 15:02:32,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:32,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:32,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:32,352 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:32,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (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 [2018-09-20 15:02:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 15:02:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:02:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 15:02:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:02:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:02:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:02:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:02:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:02:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:02:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:02:33,269 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:33,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:33 BoogieIcfgContainer [2018-09-20 15:02:33,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:33,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:33,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:33,275 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:33,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:31" (1/3) ... [2018-09-20 15:02:33,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b87c99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:33, skipping insertion in model container [2018-09-20 15:02:33,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:32" (2/3) ... [2018-09-20 15:02:33,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b87c99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:33, skipping insertion in model container [2018-09-20 15:02:33,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:33" (3/3) ... [2018-09-20 15:02:33,279 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a_true-unreach-call.c [2018-09-20 15:02:33,290 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:33,299 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:33,355 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:33,356 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:33,356 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:33,357 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:33,357 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:33,357 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:33,359 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:33,359 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:33,359 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2018-09-20 15:02:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 15:02:33,392 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:33,394 INFO L376 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] [2018-09-20 15:02:33,397 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:33,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1352860083, now seen corresponding path program 1 times [2018-09-20 15:02:33,406 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:33,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:33,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:33,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:33,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:33,590 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:33,590 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:33,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:33,612 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:33,613 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:33,616 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2018-09-20 15:02:33,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:33,657 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2018-09-20 15:02:33,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:33,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-09-20 15:02:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:33,671 INFO L225 Difference]: With dead ends: 160 [2018-09-20 15:02:33,671 INFO L226 Difference]: Without dead ends: 80 [2018-09-20 15:02:33,676 INFO L606 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 [2018-09-20 15:02:33,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-20 15:02:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-20 15:02:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-20 15:02:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2018-09-20 15:02:33,728 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 25 [2018-09-20 15:02:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:33,728 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2018-09-20 15:02:33,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:33,729 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2018-09-20 15:02:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:02:33,731 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:33,732 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:33,732 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:33,733 INFO L82 PathProgramCache]: Analyzing trace with hash -91744177, now seen corresponding path program 1 times [2018-09-20 15:02:33,733 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:02:33,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:02:33,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:33,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:33,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:02:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:02:34,043 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:02:34,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:34 BoogieIcfgContainer [2018-09-20 15:02:34,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:34,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:34,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:34,115 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:34,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:33" (3/4) ... [2018-09-20 15:02:34,121 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:02:34,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:34,122 INFO L168 Benchmark]: Toolchain (without parser) took 2241.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:34,125 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:34,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:34,126 INFO L168 Benchmark]: Boogie Preprocessor took 51.31 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:34,127 INFO L168 Benchmark]: RCFGBuilder took 919.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:34,129 INFO L168 Benchmark]: TraceAbstraction took 842.75 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:34,130 INFO L168 Benchmark]: Witness Printer took 7.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:34,137 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.31 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 919.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 842.75 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 89, overapproximation of someBinaryArithmeticDOUBLEoperation at line 101, overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=10737418245, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double x = 1.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] CALL, EXPR floor_double(x) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L20] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418249, ew_u={10737418246:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L21] FCALL ew_u.value = (x) VAL [\old(x)=10737418249, ew_u={10737418246:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L22] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L22] (i0) = ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=10737418249] [L22] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=10737418248, \old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.msw=3, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=10737418249] [L23] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=10737418249] [L23] (i1) = ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L23] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=10737418249, \old(x)=10737418249, ew_u={10737418246:0}, ew_u.parts.lsw=6442450944, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L24] COND FALSE !(0) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=10737418249] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=0, x=10737418249] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=0, x=10737418249] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] RET return x; VAL [\old(x)=10737418249, \result=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=0, x=10737418249] [L102] EXPR floor_double(x) VAL [floor_double(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L102] double res = floor_double(x); [L105] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L81] __int32_t hx, lx; VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L83] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418249, ew_u={10737418242:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L84] FCALL ew_u.value = (x) VAL [\old(x)=10737418249, ew_u={10737418242:0}, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L85] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.msw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L85] (hx) = ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.msw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418249] [L85] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418244, \old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.msw=10737418240, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418249] [L86] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418249] [L86] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418249] [L86] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418243, \old(x)=10737418249, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418249] [L87] COND FALSE !(0) VAL [\old(x)=10737418249, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418249] [L88] hx &= 0x7fffffff [L89] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L90] hx = 0x7ff00000 - hx [L91] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418249, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=2147483647, x=10737418249] [L105] EXPR isinf_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418249, x=10737418249] [L105] COND TRUE !isinf_double(res) [L106] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418249, x=10737418249] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.23-40ef509 [2018-09-20 15:02:36,502 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:36,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:36,517 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:36,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:36,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:36,520 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:36,522 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:36,523 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:36,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:36,525 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:36,525 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:36,526 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:36,527 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:36,529 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:36,529 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:36,530 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:36,532 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:36,535 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:36,537 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:36,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:36,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:36,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:36,543 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:36,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:36,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:36,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:36,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:36,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:36,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:36,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:36,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:36,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:36,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:36,554 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:36,554 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:36,555 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:02:36,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:36,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:36,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:36,581 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:36,582 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:36,583 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:36,583 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:36,583 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:36,583 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:36,583 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:36,584 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:36,584 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:36,584 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:36,584 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:36,584 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:02:36,586 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:02:36,586 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:36,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:36,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:36,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:36,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:36,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:36,587 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:36,588 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:36,588 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:36,588 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:36,588 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:36,588 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:02:36,589 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:36,589 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:02:36,589 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:02:36,589 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 -> 6c78f6baa30553ee1ef9e5dd79b3fe49457cbaef [2018-09-20 15:02:36,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:36,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:36,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:36,660 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:36,661 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:36,662 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-unreach-call.c [2018-09-20 15:02:37,020 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4975a9e01/93a62bb8fcde487e8dfa0875540b10a5/FLAGe0abad5a3 [2018-09-20 15:02:37,231 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:37,232 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052a_true-unreach-call.c [2018-09-20 15:02:37,241 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4975a9e01/93a62bb8fcde487e8dfa0875540b10a5/FLAGe0abad5a3 [2018-09-20 15:02:37,259 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4975a9e01/93a62bb8fcde487e8dfa0875540b10a5 [2018-09-20 15:02:37,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:37,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:37,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:37,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:37,277 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:37,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ef386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37, skipping insertion in model container [2018-09-20 15:02:37,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,294 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:37,575 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:37,601 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:37,652 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:37,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37 WrapperNode [2018-09-20 15:02:37,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:37,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:37,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:37,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:37,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (1/1) ... [2018-09-20 15:02:37,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:37,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:37,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:37,785 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:37,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (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 [2018-09-20 15:02:37,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:37,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:37,942 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 15:02:37,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:02:37,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 15:02:37,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:02:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:02:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:02:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:02:37,943 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:02:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:02:37,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:02:38,167 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:38,196 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:38,234 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:38,813 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:38,825 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:38,844 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:40,442 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:40,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:40 BoogieIcfgContainer [2018-09-20 15:02:40,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:40,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:40,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:40,449 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:40,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:37" (1/3) ... [2018-09-20 15:02:40,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e1d4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:40, skipping insertion in model container [2018-09-20 15:02:40,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:37" (2/3) ... [2018-09-20 15:02:40,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e1d4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:40, skipping insertion in model container [2018-09-20 15:02:40,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:40" (3/3) ... [2018-09-20 15:02:40,454 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a_true-unreach-call.c [2018-09-20 15:02:40,464 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:40,472 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:40,520 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:40,521 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:40,521 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:40,522 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:40,523 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:40,523 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:40,523 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:40,523 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:40,523 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-09-20 15:02:40,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:02:40,562 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:40,563 INFO L376 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] [2018-09-20 15:02:40,566 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash 581408791, now seen corresponding path program 1 times [2018-09-20 15:02:40,576 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:40,577 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 [2018-09-20 15:02:40,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:40,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:40,735 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:40,754 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:40,755 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:40,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:40,777 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:40,778 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:40,780 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-09-20 15:02:40,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:40,813 INFO L93 Difference]: Finished difference Result 158 states and 201 transitions. [2018-09-20 15:02:40,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:40,815 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:02:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:40,830 INFO L225 Difference]: With dead ends: 158 [2018-09-20 15:02:40,830 INFO L226 Difference]: Without dead ends: 79 [2018-09-20 15:02:40,835 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-20 15:02:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-09-20 15:02:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-20 15:02:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2018-09-20 15:02:40,887 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 24 [2018-09-20 15:02:40,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:40,888 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2018-09-20 15:02:40,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2018-09-20 15:02:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:40,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:40,890 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:40,891 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:40,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1677043250, now seen corresponding path program 1 times [2018-09-20 15:02:40,894 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:40,894 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) [2018-09-20 15:02:40,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:41,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:41,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 14 treesize of output 11 [2018-09-20 15:02:41,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:41,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:41,171 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:41,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:41,191 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:41,242 INFO L477 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 20 treesize of output 16 [2018-09-20 15:02:41,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:41,261 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:41,270 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:41,284 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:41,285 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:41,825 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:41,843 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:41,843 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:41,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:41,845 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:41,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:41,847 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 9 states. [2018-09-20 15:02:43,244 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-20 15:02:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:48,043 INFO L93 Difference]: Finished difference Result 154 states and 167 transitions. [2018-09-20 15:02:48,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:02:48,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-20 15:02:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:48,049 INFO L225 Difference]: With dead ends: 154 [2018-09-20 15:02:48,050 INFO L226 Difference]: Without dead ends: 90 [2018-09-20 15:02:48,052 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:02:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-09-20 15:02:48,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 71. [2018-09-20 15:02:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-20 15:02:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2018-09-20 15:02:48,068 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 50 [2018-09-20 15:02:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:48,069 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2018-09-20 15:02:48,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:48,069 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2018-09-20 15:02:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:02:48,073 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:48,074 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:48,074 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:48,074 INFO L82 PathProgramCache]: Analyzing trace with hash 382015451, now seen corresponding path program 1 times [2018-09-20 15:02:48,075 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:48,075 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 [2018-09-20 15:02:48,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:48,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:48,783 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-20 15:02:49,337 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:49,338 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:49,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 15:02:49,381 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:49,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 15:02:49,419 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:49,440 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:49,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:49,463 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 15:02:50,069 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:50,070 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:02:50,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 15:02:50,119 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:50,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 15:02:50,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:50,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:50,252 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. [2018-09-20 15:02:50,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 15:02:50,469 INFO L477 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 35 treesize of output 27 [2018-09-20 15:02:50,480 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:50,484 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 15:02:50,484 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:50,498 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:50,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:50,527 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 15:02:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:51,726 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:51,740 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:51,741 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-20 15:02:51,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 15:02:51,741 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 15:02:51,742 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:02:51,742 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 15 states. [2018-09-20 15:02:54,544 WARN L178 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:03:01,434 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-20 15:03:02,803 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-20 15:03:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:04,180 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2018-09-20 15:03:04,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-20 15:03:04,180 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-09-20 15:03:04,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:04,182 INFO L225 Difference]: With dead ends: 80 [2018-09-20 15:03:04,183 INFO L226 Difference]: Without dead ends: 73 [2018-09-20 15:03:04,184 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2018-09-20 15:03:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-20 15:03:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-09-20 15:03:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-09-20 15:03:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2018-09-20 15:03:04,195 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 50 [2018-09-20 15:03:04,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:04,196 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2018-09-20 15:03:04,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-20 15:03:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2018-09-20 15:03:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:03:04,199 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:04,199 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:03:04,199 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:04,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1695193892, now seen corresponding path program 1 times [2018-09-20 15:03:04,200 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:04,200 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 [2018-09-20 15:03:04,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:04,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:04,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 14 treesize of output 11 [2018-09-20 15:03:04,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:03:04,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:04,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:04,383 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:04,384 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:04,425 INFO L477 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 20 treesize of output 16 [2018-09-20 15:03:04,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:03:04,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:04,434 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:04,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:04,445 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:04,691 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:04,706 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:04,707 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:04,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:04,707 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:04,708 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:04,708 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 9 states. [2018-09-20 15:03:05,698 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:03:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:07,255 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2018-09-20 15:03:07,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:03:07,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-20 15:03:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:07,257 INFO L225 Difference]: With dead ends: 90 [2018-09-20 15:03:07,257 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:03:07,258 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:03:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:03:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:03:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:03:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:03:07,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-20 15:03:07,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:07,261 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:03:07,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:03:07,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:03:07,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:03:07,444 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-09-20 15:03:07,444 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:03:07,445 INFO L422 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (= floor_double_~x |floor_double_#in~x|) [2018-09-20 15:03:07,445 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:03:07,445 INFO L426 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:03:07,445 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-09-20 15:03:07,445 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:03:07,445 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:03:07,445 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L429 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L70-2(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L70-3(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-09-20 15:03:07,446 INFO L426 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L71-1(line 71) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L71-2(line 71) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L71-3(line 71) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:03:07,447 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:03:07,453 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:03:07,454 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-09-20 15:03:07,456 INFO L426 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-09-20 15:03:07,456 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-20 15:03:07,456 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:07,457 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L83(line 83) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L83-1(line 83) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L83-2(line 83) no Hoare annotation was computed. [2018-09-20 15:03:07,459 INFO L426 ceAbstractionStarter]: For program point L83-3(line 83) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point L86-2(line 86) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point L86-3(line 86) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point L82-1(lines 82 87) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 80 92) no Hoare annotation was computed. [2018-09-20 15:03:07,460 INFO L422 ceAbstractionStarter]: At program point L82-3(lines 82 87) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-09-20 15:03:07,463 INFO L426 ceAbstractionStarter]: For program point L82-4(lines 82 87) no Hoare annotation was computed. [2018-09-20 15:03:07,463 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 80 92) no Hoare annotation was computed. [2018-09-20 15:03:07,463 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 80 92) the Hoare annotation is: true [2018-09-20 15:03:07,463 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:07,463 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:03:07,463 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:07,463 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:07,463 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 94 110) the Hoare annotation is: true [2018-09-20 15:03:07,464 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 94 110) no Hoare annotation was computed. [2018-09-20 15:03:07,464 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-20 15:03:07,464 INFO L422 ceAbstractionStarter]: At program point L105(line 105) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-20 15:03:07,464 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 94 110) no Hoare annotation was computed. [2018-09-20 15:03:07,464 INFO L426 ceAbstractionStarter]: For program point L105-1(lines 105 108) no Hoare annotation was computed. [2018-09-20 15:03:07,464 INFO L422 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:03:07,464 INFO L426 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-09-20 15:03:07,465 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-09-20 15:03:07,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:07 BoogieIcfgContainer [2018-09-20 15:03:07,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:07,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:07,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:07,478 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:07,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:40" (3/4) ... [2018-09-20 15:03:07,484 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:03:07,492 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-09-20 15:03:07,492 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:03:07,492 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-20 15:03:07,493 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:03:07,500 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-09-20 15:03:07,500 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-20 15:03:07,501 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:03:07,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:03:07,528 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:03:07,580 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:03:07,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:07,581 INFO L168 Benchmark]: Toolchain (without parser) took 30316.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:07,583 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:07,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.57 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:07,583 INFO L168 Benchmark]: Boogie Preprocessor took 66.52 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:07,584 INFO L168 Benchmark]: RCFGBuilder took 2658.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.8 MB). Free memory was 938.4 MB in the beginning and 1.0 GB in the end (delta: -90.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:07,585 INFO L168 Benchmark]: TraceAbstraction took 27032.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -62.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:07,586 INFO L168 Benchmark]: Witness Printer took 102.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:07,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 448.57 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.52 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2658.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.8 MB). Free memory was 938.4 MB in the beginning and 1.0 GB in the end (delta: -90.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27032.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -62.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Witness Printer took 102.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 83 locations, 1 error locations. SAFE Result, 26.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 21.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 452 SDslu, 1119 SDs, 0 SdLazy, 604 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred 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, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 45 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 170 ConstructedInterpolants, 49 QuantifiedInterpolants, 63151 SizeOfPredicates, 27 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...