/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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/float_req_bl_0910a_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 534ce73b969c24d3fe4a2996f4697b5d070e8f3e --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ................................................................................................................................................................................................................................................................................................................... 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/float_req_bl_0910a_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 534ce73b969c24d3fe4a2996f4697b5d070e8f3e --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:33:14,545 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:33:14,549 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:33:14,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:33:14,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:33:14,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:33:14,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:33:14,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:33:14,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:33:14,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:33:14,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:33:14,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:33:14,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:33:14,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:33:14,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:33:14,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:33:14,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:33:14,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:33:14,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:33:14,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:33:14,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:33:14,582 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:33:14,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:33:14,585 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:33:14,585 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:33:14,586 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:33:14,587 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:33:14,588 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:33:14,589 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:33:14,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:33:14,591 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:33:14,591 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:33:14,592 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:33:14,592 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:33:14,593 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:33:14,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:33:14,594 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:33:14,612 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:33:14,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:33:14,616 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:33:14,616 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:33:14,617 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:33:14,617 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:33:14,619 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:33:14,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:33:14,619 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:33:14,619 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:33:14,619 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:33:14,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:33:14,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:33:14,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:33:14,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:33:14,622 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:33:14,622 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:33:14,622 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:33:14,622 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:33:14,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:33:14,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:33:14,623 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:33:14,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:33:14,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:33:14,626 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:33:14,626 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:33:14,628 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:33:14,628 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:33:14,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:33:14,628 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 -> 534ce73b969c24d3fe4a2996f4697b5d070e8f3e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:33:14,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:33:14,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:33:14,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:33:14,747 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:33:14,747 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:33:14,748 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a_true-unreach-call.c [2018-09-21 18:33:15,096 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f780f00fd/9e8e2718165047839e863a1d366d1984/FLAG3b502afa4 [2018-09-21 18:33:15,305 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:33:15,310 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a_true-unreach-call.c [2018-09-21 18:33:15,328 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f780f00fd/9e8e2718165047839e863a1d366d1984/FLAG3b502afa4 [2018-09-21 18:33:15,346 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f780f00fd/9e8e2718165047839e863a1d366d1984 [2018-09-21 18:33:15,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:33:15,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:33:15,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:15,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:33:15,363 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:33:15,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df33eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15, skipping insertion in model container [2018-09-21 18:33:15,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,380 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:33:15,695 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:15,723 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:33:15,790 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:15,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15 WrapperNode [2018-09-21 18:33:15,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:15,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:33:15,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:33:15,851 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:33:15,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (1/1) ... [2018-09-21 18:33:15,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:33:15,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:33:15,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:33:15,940 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:33:15,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (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 [2018-09-21 18:33:16,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:33:16,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:33:16,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:33:16,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:33:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:33:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:33:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:33:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:33:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:33:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:33:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:33:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:33:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:33:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:33:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:33:16,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:33:16,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:33:16,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:33:16,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:33:16,787 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:33:16,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:16 BoogieIcfgContainer [2018-09-21 18:33:16,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:33:16,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:33:16,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:33:16,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:33:16,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:33:15" (1/3) ... [2018-09-21 18:33:16,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302cd53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:16, skipping insertion in model container [2018-09-21 18:33:16,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:15" (2/3) ... [2018-09-21 18:33:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302cd53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:16, skipping insertion in model container [2018-09-21 18:33:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:16" (3/3) ... [2018-09-21 18:33:16,796 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910a_true-unreach-call.c [2018-09-21 18:33:16,806 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:33:16,815 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:33:16,861 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:33:16,862 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:33:16,862 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:33:16,862 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:33:16,862 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:33:16,862 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:33:16,863 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:33:16,863 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:33:16,863 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:33:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-09-21 18:33:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:33:16,895 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:16,896 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] [2018-09-21 18:33:16,899 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:16,906 INFO L82 PathProgramCache]: Analyzing trace with hash 246875342, now seen corresponding path program 1 times [2018-09-21 18:33:16,908 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:33:16,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:33:16,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:16,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:16,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:17,104 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:17,104 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:33:17,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:33:17,122 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:33:17,123 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:33:17,125 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-09-21 18:33:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:17,148 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2018-09-21 18:33:17,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:33:17,150 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:33:17,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:17,163 INFO L225 Difference]: With dead ends: 78 [2018-09-21 18:33:17,163 INFO L226 Difference]: Without dead ends: 74 [2018-09-21 18:33:17,165 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 [2018-09-21 18:33:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-09-21 18:33:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-09-21 18:33:17,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 18:33:17,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2018-09-21 18:33:17,210 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 23 [2018-09-21 18:33:17,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:17,210 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2018-09-21 18:33:17,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:33:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2018-09-21 18:33:17,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:33:17,212 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:17,212 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] [2018-09-21 18:33:17,213 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:17,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1270612634, now seen corresponding path program 1 times [2018-09-21 18:33:17,213 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:33:17,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:33:17,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:17,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:17,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:33:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:33:17,403 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:33:17,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:33:17 BoogieIcfgContainer [2018-09-21 18:33:17,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:33:17,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:33:17,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:33:17,469 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:33:17,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:16" (3/4) ... [2018-09-21 18:33:17,475 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:33:17,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:33:17,476 INFO L168 Benchmark]: Toolchain (without parser) took 2124.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:17,478 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-09-21 18:33:17,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:17,480 INFO L168 Benchmark]: Boogie Preprocessor took 88.57 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:33:17,481 INFO L168 Benchmark]: RCFGBuilder took 848.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:17,482 INFO L168 Benchmark]: TraceAbstraction took 679.28 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:17,483 INFO L168 Benchmark]: Witness Printer took 6.38 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. [2018-09-21 18:33:17,488 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 494.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.57 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 848.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 679.28 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.38 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: 120]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 43, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L23-L27] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L29] static const float zero_log = 0.0; VAL [\old(Lg1_log)=10737418256, \old(Lg2_log)=10737418257, \old(Lg3_log)=10737418241, \old(Lg4_log)=10737418244, \old(Lg5_log)=10737418246, \old(Lg6_log)=10737418255, \old(Lg7_log)=10737418254, \old(ln2_hi_log)=10737418243, \old(ln2_lo_log)=10737418248, \old(two25_log)=10737418252, \old(zero_log)=10737418250, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L115] float x = 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L116] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L32] float hfsq, f, s, z, R, w, t1, t2, dk; [L33] __int32_t k, ix, i, j; VAL [\old(x)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L36] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={10737418253:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L37] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={10737418253:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L38] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={10737418253:0}, gf_u.word=10737418240, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L38] (ix) = gf_u.word VAL [\old(x)=0, gf_u={10737418253:0}, gf_u.word=10737418240, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L38] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418251, \old(x)=0, gf_u={10737418253:0}, gf_u.word=10737418240, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L39] COND FALSE !(0) VAL [\old(x)=0, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L41] k = 0 VAL [\old(x)=0, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L42] COND TRUE ((ix & 0x7fffffff) == 0) [L43] RET return -two25_log / zero_log; VAL [\old(x)=0, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L116] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=10737418245, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L116] float res = __ieee754_logf(x); [L119] CALL, EXPR isinf_float(res) VAL [\old(x)=10737418245, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L13] __int32_t ix; VAL [\old(x)=10737418245, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418245, gf_u={10737418253:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L16] FCALL gf_u.value = (x) VAL [\old(x)=10737418245, gf_u={10737418253:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=10737418245, gf_u={10737418253:0}, gf_u.word=10737418240, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L17] (ix) = gf_u.word VAL [\old(x)=10737418245, gf_u={10737418253:0}, gf_u.word=10737418240, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L17] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418247, \old(x)=10737418245, gf_u={10737418253:0}, gf_u.word=10737418240, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L18] COND FALSE !(0) VAL [\old(x)=10737418245, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L19] ix &= 0x7fffffff [L20] RET return ((ix) == 0x7f800000L); VAL [\old(x)=10737418245, \result=0, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418245, zero_log=0] [L119] EXPR isinf_float(res) VAL [isinf_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418245, two25_log=33554432, x=0, zero_log=0] [L119] COND TRUE !isinf_float(res) [L120] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418245, two25_log=33554432, x=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 88 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=78occurred 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 0.1.23-5eb3fea [2018-09-21 18:33:19,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:33:19,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:33:19,859 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:33:19,859 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:33:19,861 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:33:19,864 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:33:19,866 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:33:19,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:33:19,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:33:19,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:33:19,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:33:19,875 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:33:19,877 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:33:19,881 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:33:19,882 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:33:19,883 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:33:19,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:33:19,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:33:19,899 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:33:19,903 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:33:19,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:33:19,908 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:33:19,909 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:33:19,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:33:19,911 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:33:19,912 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:33:19,913 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:33:19,914 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:33:19,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:33:19,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:33:19,919 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:33:19,919 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:33:19,919 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:33:19,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:33:19,922 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:33:19,923 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:33:19,950 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:33:19,950 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:33:19,951 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:33:19,951 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:33:19,952 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:33:19,952 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:33:19,952 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:33:19,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:33:19,958 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:33:19,958 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:33:19,958 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:33:19,958 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:33:19,959 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:33:19,959 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:33:19,959 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:33:19,959 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:33:19,959 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:33:19,959 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:33:19,960 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:33:19,960 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:33:19,960 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:33:19,960 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:33:19,962 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:33:19,962 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:33:19,962 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:33:19,962 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:33:19,962 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:33:19,963 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:33:19,963 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:33:19,963 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:33:19,963 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:33:19,963 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 -> 534ce73b969c24d3fe4a2996f4697b5d070e8f3e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:33:20,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:33:20,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:33:20,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:33:20,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:33:20,038 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:33:20,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a_true-unreach-call.c [2018-09-21 18:33:20,378 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d255583/2ff02d8857ae41af8d22cf57c1d3b9aa/FLAG0425fcd0f [2018-09-21 18:33:20,514 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:33:20,514 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a_true-unreach-call.c [2018-09-21 18:33:20,524 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d255583/2ff02d8857ae41af8d22cf57c1d3b9aa/FLAG0425fcd0f [2018-09-21 18:33:20,539 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2d255583/2ff02d8857ae41af8d22cf57c1d3b9aa [2018-09-21 18:33:20,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:33:20,546 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:33:20,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:20,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:33:20,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:33:20,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:20,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35afef43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20, skipping insertion in model container [2018-09-21 18:33:20,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:20,571 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:33:20,858 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:20,880 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:33:20,914 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:20,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20 WrapperNode [2018-09-21 18:33:20,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:20,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:33:20,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:33:20,963 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:33:20,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:20,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:21,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:21,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:21,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:21,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:21,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (1/1) ... [2018-09-21 18:33:21,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:33:21,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:33:21,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:33:21,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:33:21,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (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 [2018-09-21 18:33:21,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:33:21,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:33:21,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:33:21,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:33:21,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:33:21,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:33:21,229 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:33:21,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:33:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:33:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:33:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:33:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:33:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:33:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:33:21,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:33:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:33:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:33:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:33:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:33:21,647 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:21,692 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:32,799 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:32,814 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:33,598 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:33,628 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:33,832 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:33:33,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:33 BoogieIcfgContainer [2018-09-21 18:33:33,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:33:33,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:33:33,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:33:33,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:33:33,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:33:20" (1/3) ... [2018-09-21 18:33:33,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbd118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:33, skipping insertion in model container [2018-09-21 18:33:33,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:20" (2/3) ... [2018-09-21 18:33:33,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbd118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:33, skipping insertion in model container [2018-09-21 18:33:33,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:33" (3/3) ... [2018-09-21 18:33:33,842 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910a_true-unreach-call.c [2018-09-21 18:33:33,853 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:33:33,863 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:33:33,909 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:33:33,910 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:33:33,911 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:33:33,911 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:33:33,911 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:33:33,911 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:33:33,911 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:33:33,911 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:33:33,912 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:33:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-09-21 18:33:33,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:33:33,946 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:33,949 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] [2018-09-21 18:33:33,954 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:33,959 INFO L82 PathProgramCache]: Analyzing trace with hash 459067002, now seen corresponding path program 1 times [2018-09-21 18:33:33,965 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:33,966 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 [2018-09-21 18:33:33,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:34,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:34,374 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:34,391 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:34,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:33:34,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:33:34,408 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:33:34,409 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:33:34,411 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-09-21 18:33:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:34,433 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2018-09-21 18:33:34,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:33:34,434 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:33:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:34,448 INFO L225 Difference]: With dead ends: 77 [2018-09-21 18:33:34,448 INFO L226 Difference]: Without dead ends: 73 [2018-09-21 18:33:34,450 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:33:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-21 18:33:34,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-09-21 18:33:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-21 18:33:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2018-09-21 18:33:34,497 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 22 [2018-09-21 18:33:34,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:34,498 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2018-09-21 18:33:34,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:33:34,498 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2018-09-21 18:33:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:33:34,500 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:34,500 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] [2018-09-21 18:33:34,501 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:34,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1201574240, now seen corresponding path program 1 times [2018-09-21 18:33:34,502 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:34,502 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:33:34,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:34,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:35,411 WARN L178 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:33:35,666 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 11 treesize of output 8 [2018-09-21 18:33:35,671 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 8 treesize of output 7 [2018-09-21 18:33:35,672 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:35,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:35,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:35,699 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:35,778 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 29 treesize of output 21 [2018-09-21 18:33:35,787 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 21 treesize of output 9 [2018-09-21 18:33:35,788 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:35,791 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:35,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:35,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:36,140 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 18:33:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:36,245 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:36,261 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:36,261 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:33:36,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:33:36,265 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:33:36,265 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:33:36,266 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 12 states. [2018-09-21 18:33:38,102 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:33:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:53,208 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2018-09-21 18:33:53,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:33:53,208 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-09-21 18:33:53,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:53,213 INFO L225 Difference]: With dead ends: 80 [2018-09-21 18:33:53,213 INFO L226 Difference]: Without dead ends: 75 [2018-09-21 18:33:53,215 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:33:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-21 18:33:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-09-21 18:33:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-21 18:33:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2018-09-21 18:33:53,231 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 40 [2018-09-21 18:33:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:53,232 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2018-09-21 18:33:53,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:33:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2018-09-21 18:33:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:33:53,234 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:53,234 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] [2018-09-21 18:33:53,235 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1906222067, now seen corresponding path program 1 times [2018-09-21 18:33:53,236 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:53,236 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 [2018-09-21 18:33:53,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:53,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:53,563 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 11 treesize of output 8 [2018-09-21 18:33:53,567 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 8 treesize of output 7 [2018-09-21 18:33:53,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:53,575 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:53,585 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:53,586 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:53,653 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 29 treesize of output 21 [2018-09-21 18:33:53,661 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 21 treesize of output 9 [2018-09-21 18:33:53,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:53,665 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:53,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:53,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:33:53,760 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:53,773 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:53,773 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:33:53,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:33:53,774 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:33:53,774 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:33:53,775 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand 8 states. [2018-09-21 18:33:57,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:57,973 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-09-21 18:33:57,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:33:57,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-09-21 18:33:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:57,975 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:33:57,976 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:33:57,976 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:33:57,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:33:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:33:57,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:33:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:33:57,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-09-21 18:33:57,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:57,977 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:33:57,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:33:57,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:33:57,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:33:57,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:33:57 BoogieIcfgContainer [2018-09-21 18:33:57,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:33:57,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:33:57,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:33:57,984 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:33:57,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:33" (3/4) ... [2018-09-21 18:33:57,989 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:33:57,997 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:33:57,997 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:33:57,998 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-21 18:33:57,998 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:33:58,005 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-09-21 18:33:58,006 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-21 18:33:58,006 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:33:58,007 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:33:58,084 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:33:58,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:33:58,086 INFO L168 Benchmark]: Toolchain (without parser) took 37542.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 953.2 MB in the beginning and 905.5 MB in the end (delta: 47.7 MB). Peak memory consumption was 182.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:58,087 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-09-21 18:33:58,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.51 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:58,088 INFO L168 Benchmark]: Boogie Preprocessor took 87.75 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:33:58,088 INFO L168 Benchmark]: RCFGBuilder took 12782.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:58,089 INFO L168 Benchmark]: TraceAbstraction took 24149.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.6 MB in the end (delta: 175.0 MB). Peak memory consumption was 175.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:58,089 INFO L168 Benchmark]: Witness Printer took 100.73 ms. Allocated memory is still 1.2 GB. Free memory was 912.6 MB in the beginning and 905.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:58,097 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 415.51 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.75 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12782.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24149.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.6 MB in the end (delta: 175.0 MB). Peak memory consumption was 175.0 MB. Max. memory is 11.5 GB. * Witness Printer took 100.73 ms. Allocated memory is still 1.2 GB. Free memory was 912.6 MB in the beginning and 905.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 120]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 77 locations, 1 error locations. SAFE Result, 24.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 21.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 208 SDtfs, 148 SDslu, 811 SDs, 0 SdLazy, 221 SolverSat, 15 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 5 QuantifiedInterpolants, 26790 SizeOfPredicates, 16 NumberOfNonLiveVariables, 316 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...