/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910b_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_0910b_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 9715021f39c8c40f74d5b2a16209aa11aedb826e --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_0910b_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 9715021f39c8c40f74d5b2a16209aa11aedb826e --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 18:33:30,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:33:30,671 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:33:30,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:33:30,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:33:30,686 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:33:30,687 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:33:30,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:33:30,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:33:30,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:33:30,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:33:30,693 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:33:30,694 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:33:30,695 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:33:30,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:33:30,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:33:30,698 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:33:30,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:33:30,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:33:30,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:33:30,707 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:33:30,708 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:33:30,711 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:33:30,711 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:33:30,711 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:33:30,712 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:33:30,714 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:33:30,715 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:33:30,716 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:33:30,717 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:33:30,718 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:33:30,718 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:33:30,719 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:33:30,719 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:33:30,720 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:33:30,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:33:30,722 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:33:30,740 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:33:30,740 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:33:30,741 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:33:30,741 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:33:30,742 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:33:30,742 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:33:30,742 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:33:30,745 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:33:30,745 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:33:30,745 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:33:30,745 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:33:30,745 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:33:30,745 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:33:30,746 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:33:30,746 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:33:30,746 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:33:30,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:33:30,746 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:33:30,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:33:30,747 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:33:30,747 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:33:30,747 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:33:30,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:33:30,747 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:33:30,747 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:33:30,748 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:33:30,748 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:33:30,748 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:33:30,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:33:30,754 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 -> 9715021f39c8c40f74d5b2a16209aa11aedb826e 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 18:33:30,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:33:30,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:33:30,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:33:30,831 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:33:30,832 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:33:30,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910b_true-unreach-call.c [2018-09-21 18:33:31,176 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d629f90/61717bd528c14556b9fba66d88f133ab/FLAG32135472e [2018-09-21 18:33:31,328 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:33:31,329 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910b_true-unreach-call.c [2018-09-21 18:33:31,337 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d629f90/61717bd528c14556b9fba66d88f133ab/FLAG32135472e [2018-09-21 18:33:31,353 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d629f90/61717bd528c14556b9fba66d88f133ab [2018-09-21 18:33:31,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:33:31,359 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:33:31,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:31,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:33:31,368 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:33:31,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8a7346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31, skipping insertion in model container [2018-09-21 18:33:31,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,386 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:33:31,630 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:31,655 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:33:31,717 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:31,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31 WrapperNode [2018-09-21 18:33:31,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:31,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:33:31,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:33:31,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:33:31,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (1/1) ... [2018-09-21 18:33:31,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:33:31,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:33:31,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:33:31,848 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:33:31,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (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 18:33:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:33:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:33:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:33:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:33:31,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:33:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:33:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:33:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:33:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:33:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:33:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:33:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:33:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:33:32,647 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:33:32,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:32 BoogieIcfgContainer [2018-09-21 18:33:32,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:33:32,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:33:32,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:33:32,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:33:32,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:33:31" (1/3) ... [2018-09-21 18:33:32,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d2bef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:32, skipping insertion in model container [2018-09-21 18:33:32,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:31" (2/3) ... [2018-09-21 18:33:32,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d2bef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:32, skipping insertion in model container [2018-09-21 18:33:32,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:32" (3/3) ... [2018-09-21 18:33:32,659 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910b_true-unreach-call.c [2018-09-21 18:33:32,670 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:33:32,679 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:33:32,729 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:33:32,730 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:33:32,730 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:33:32,730 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:33:32,730 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:33:32,730 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:33:32,730 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:33:32,731 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:33:32,731 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:33:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-09-21 18:33:32,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:33:32,764 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:32,765 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 18:33:32,767 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:32,773 INFO L82 PathProgramCache]: Analyzing trace with hash 246875342, now seen corresponding path program 1 times [2018-09-21 18:33:32,778 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:33:32,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:33:32,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:32,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:32,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:32,979 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 18:33:32,982 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:32,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:33:32,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:33:33,002 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:33:33,002 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:33:33,005 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-09-21 18:33:33,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:33,031 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2018-09-21 18:33:33,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:33:33,032 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:33:33,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:33,046 INFO L225 Difference]: With dead ends: 78 [2018-09-21 18:33:33,046 INFO L226 Difference]: Without dead ends: 74 [2018-09-21 18:33:33,048 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 18:33:33,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-09-21 18:33:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-09-21 18:33:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-09-21 18:33:33,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2018-09-21 18:33:33,092 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 23 [2018-09-21 18:33:33,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:33,092 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2018-09-21 18:33:33,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:33:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2018-09-21 18:33:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:33:33,094 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:33,095 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 18:33:33,095 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:33,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1270612634, now seen corresponding path program 1 times [2018-09-21 18:33:33,096 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:33:33,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:33:33,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:33,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:33,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:33:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:33:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:33:33,254 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:33:33,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:33:33 BoogieIcfgContainer [2018-09-21 18:33:33,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:33:33,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:33:33,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:33:33,313 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:33:33,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:32" (3/4) ... [2018-09-21 18:33:33,318 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:33:33,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:33:33,319 INFO L168 Benchmark]: Toolchain (without parser) took 1961.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:33,321 INFO L168 Benchmark]: CDTParser took 0.19 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 18:33:33,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:33,323 INFO L168 Benchmark]: Boogie Preprocessor took 66.08 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:33,324 INFO L168 Benchmark]: RCFGBuilder took 800.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:33,325 INFO L168 Benchmark]: TraceAbstraction took 663.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:33:33,326 INFO L168 Benchmark]: Witness Printer took 5.64 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 18:33:33,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 419.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.08 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 800.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 663.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.64 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: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryFLOAToperation at line 116, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 20. Possible FailurePath: [L24-L28] 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; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=10737418258, \old(Lg2_log)=10737418259, \old(Lg3_log)=10737418241, \old(Lg4_log)=10737418244, \old(Lg5_log)=10737418246, \old(Lg6_log)=10737418257, \old(Lg7_log)=10737418256, \old(ln2_hi_log)=10737418243, \old(ln2_lo_log)=10737418249, \old(two25_log)=10737418254, \old(zero_log)=10737418251, 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] [L116] 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, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=10737418248, 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] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=10737418248, 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=10737418248, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418248, gf_u={10737418252:0}, 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=10737418248, zero_log=0] [L38] FCALL gf_u.value = (x) VAL [\old(x)=10737418248, gf_u={10737418252:0}, 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=10737418248, zero_log=0] [L39] EXPR, FCALL gf_u.word VAL [\old(x)=10737418248, gf_u={10737418252:0}, gf_u.word=6442450944, 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=10737418248, zero_log=0] [L39] (ix) = gf_u.word VAL [\old(x)=10737418248, gf_u={10737418252:0}, gf_u.word=6442450944, 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=10737418248, zero_log=0] [L39] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418253, \old(x)=10737418248, gf_u={10737418252:0}, gf_u.word=6442450944, 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=10737418248, zero_log=0] [L40] COND FALSE !(0) VAL [\old(x)=10737418248, 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=10737418248, zero_log=0] [L42] k = 0 VAL [\old(x)=10737418248, 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=10737418248, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=10737418248, 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=10737418248, zero_log=0] [L117] 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=10737418248, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] 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] [L14] __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] [L16] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418245, gf_u={10737418255:0}, 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] FCALL gf_u.value = (x) VAL [\old(x)=10737418245, gf_u={10737418255:0}, 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] [L18] EXPR, FCALL gf_u.word VAL [\old(x)=10737418245, gf_u={10737418255:0}, 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] [L18] (ix) = gf_u.word VAL [\old(x)=10737418245, gf_u={10737418255:0}, 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] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418247, \old(x)=10737418245, gf_u={10737418255:0}, 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] [L19] 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] [L20] ix &= 0x7fffffff [L21] 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] [L120] 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=10737418248, zero_log=0] [L120] COND TRUE !isinf_float(res) [L121] __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=10737418248, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.5s 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 18:33:35,679 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:33:35,681 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:33:35,694 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:33:35,695 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:33:35,696 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:33:35,697 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:33:35,699 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:33:35,701 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:33:35,702 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:33:35,703 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:33:35,704 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:33:35,705 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:33:35,706 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:33:35,707 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:33:35,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:33:35,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:33:35,711 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:33:35,713 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:33:35,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:33:35,716 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:33:35,717 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:33:35,720 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:33:35,720 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:33:35,720 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:33:35,721 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:33:35,723 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:33:35,724 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:33:35,725 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:33:35,726 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:33:35,726 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:33:35,727 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:33:35,727 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:33:35,728 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:33:35,729 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:33:35,730 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:33:35,730 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:33:35,751 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:33:35,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:33:35,758 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:33:35,758 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:33:35,758 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:33:35,759 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:33:35,759 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:33:35,759 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:33:35,759 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:33:35,759 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:33:35,760 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:33:35,760 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:33:35,760 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:33:35,760 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:33:35,760 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:33:35,763 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:33:35,763 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:33:35,763 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:33:35,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:33:35,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:33:35,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:33:35,765 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:33:35,766 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:33:35,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:33:35,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:33:35,766 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:33:35,766 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:33:35,766 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:33:35,767 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:33:35,767 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:33:35,767 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:33:35,767 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 -> 9715021f39c8c40f74d5b2a16209aa11aedb826e 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 18:33:35,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:33:35,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:33:35,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:33:35,854 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:33:35,854 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:33:35,854 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910b_true-unreach-call.c [2018-09-21 18:33:36,147 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6faa7bae4/d9cd26cb1f85447da7f1e6246e4737de/FLAG6dbc5f49a [2018-09-21 18:33:36,398 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:33:36,400 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910b_true-unreach-call.c [2018-09-21 18:33:36,408 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6faa7bae4/d9cd26cb1f85447da7f1e6246e4737de/FLAG6dbc5f49a [2018-09-21 18:33:36,422 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6faa7bae4/d9cd26cb1f85447da7f1e6246e4737de [2018-09-21 18:33:36,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:33:36,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:33:36,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:36,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:33:36,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:33:36,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acdb34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36, skipping insertion in model container [2018-09-21 18:33:36,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,452 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:33:36,743 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:36,763 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:33:36,798 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:33:36,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36 WrapperNode [2018-09-21 18:33:36,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:33:36,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:33:36,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:33:36,836 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:33:36,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (1/1) ... [2018-09-21 18:33:36,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:33:36,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:33:36,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:33:36,899 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:33:36,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (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 18:33:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:33:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:33:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:33:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:33:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:33:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:33:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:33:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:33:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:33:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:33:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:33:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:33:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:33:37,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:33:37,380 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:37,405 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:48,651 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:48,663 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:49,592 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:49,619 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:33:49,955 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:33:49,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:49 BoogieIcfgContainer [2018-09-21 18:33:49,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:33:49,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:33:49,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:33:49,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:33:49,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:33:36" (1/3) ... [2018-09-21 18:33:49,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c370995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:49, skipping insertion in model container [2018-09-21 18:33:49,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:33:36" (2/3) ... [2018-09-21 18:33:49,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c370995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:33:49, skipping insertion in model container [2018-09-21 18:33:49,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:49" (3/3) ... [2018-09-21 18:33:49,974 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910b_true-unreach-call.c [2018-09-21 18:33:49,984 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:33:49,997 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:33:50,041 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:33:50,041 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:33:50,042 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:33:50,042 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:33:50,042 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:33:50,042 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:33:50,042 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:33:50,043 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:33:50,043 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:33:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-09-21 18:33:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:33:50,074 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:50,075 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 18:33:50,078 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:50,084 INFO L82 PathProgramCache]: Analyzing trace with hash 459067002, now seen corresponding path program 1 times [2018-09-21 18:33:50,089 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:50,090 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 18:33:50,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:50,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:50,422 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 18:33:50,424 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:50,443 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:50,444 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:33:50,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:33:50,465 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:33:50,466 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:33:50,468 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-09-21 18:33:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:33:50,493 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2018-09-21 18:33:50,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:33:50,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:33:50,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:33:50,512 INFO L225 Difference]: With dead ends: 77 [2018-09-21 18:33:50,512 INFO L226 Difference]: Without dead ends: 73 [2018-09-21 18:33:50,514 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 18:33:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-21 18:33:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-09-21 18:33:50,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-21 18:33:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2018-09-21 18:33:50,559 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 22 [2018-09-21 18:33:50,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:33:50,559 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2018-09-21 18:33:50,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:33:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2018-09-21 18:33:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:33:50,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:33:50,565 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 18:33:50,565 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:33:50,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1201574240, now seen corresponding path program 1 times [2018-09-21 18:33:50,567 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:33:50,567 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 18:33:50,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:33:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:33:50,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:33:51,532 WARN L178 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:33:51,638 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 18:33:51,652 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 18:33:51,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,725 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 18:33:51,726 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:33:51,822 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 18:33:51,829 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 18:33:51,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,833 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:33:51,860 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 18:33:51,861 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:33:52,227 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 18:33:52,230 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:33:52,251 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:33:52,251 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:33:52,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:33:52,253 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:33:52,256 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:33:52,256 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 12 states. [2018-09-21 18:33:54,556 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:33:55,391 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-21 18:34:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:10,548 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2018-09-21 18:34:10,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:34:10,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-09-21 18:34:10,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:10,554 INFO L225 Difference]: With dead ends: 80 [2018-09-21 18:34:10,554 INFO L226 Difference]: Without dead ends: 75 [2018-09-21 18:34:10,556 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:34:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-21 18:34:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-09-21 18:34:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-21 18:34:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2018-09-21 18:34:10,570 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 40 [2018-09-21 18:34:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:10,571 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2018-09-21 18:34:10,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:34:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2018-09-21 18:34:10,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-21 18:34:10,574 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:10,574 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 18:34:10,574 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:10,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1906222067, now seen corresponding path program 1 times [2018-09-21 18:34:10,576 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:10,576 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 18:34:10,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:10,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:10,901 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 18:34:10,914 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 18:34:10,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,940 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:10,967 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 18:34:10,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:34:10,994 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 18:34:10,998 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 18:34:10,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:11,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:11,007 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 18:34:11,007 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:34:11,101 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 18:34:11,102 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:11,118 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:11,118 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:34:11,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:34:11,120 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:34:11,121 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:34:11,121 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand 8 states. [2018-09-21 18:34:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:15,748 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-09-21 18:34:15,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:34:15,749 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-09-21 18:34:15,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:15,750 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:34:15,750 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:34:15,751 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 18:34:15,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:34:15,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:34:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:34:15,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:34:15,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-09-21 18:34:15,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:15,752 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:34:15,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:34:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:34:15,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:34:15,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:34:15 BoogieIcfgContainer [2018-09-21 18:34:15,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:34:15,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:34:15,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:34:15,759 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:34:15,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:33:49" (3/4) ... [2018-09-21 18:34:15,765 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:34:15,772 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:34:15,772 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:34:15,772 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-21 18:34:15,773 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:34:15,779 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-09-21 18:34:15,780 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-21 18:34:15,780 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:34:15,781 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:34:15,857 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:34:15,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:34:15,858 INFO L168 Benchmark]: Toolchain (without parser) took 39431.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 951.8 MB in the beginning and 937.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:15,860 INFO L168 Benchmark]: CDTParser took 0.15 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 18:34:15,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.57 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 18:34:15,861 INFO L168 Benchmark]: Boogie Preprocessor took 62.59 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 18:34:15,862 INFO L168 Benchmark]: RCFGBuilder took 13061.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:15,863 INFO L168 Benchmark]: TraceAbstraction took 25796.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.7 MB in the end (delta: 174.4 MB). Peak memory consumption was 174.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:15,863 INFO L168 Benchmark]: Witness Printer took 98.83 ms. Allocated memory is still 1.2 GB. Free memory was 944.7 MB in the beginning and 937.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:15,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 405.57 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 62.59 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 13061.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25796.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.7 MB in the end (delta: 174.4 MB). Peak memory consumption was 174.4 MB. Max. memory is 11.5 GB. * Witness Printer took 98.83 ms. Allocated memory is still 1.2 GB. Free memory was 944.7 MB in the beginning and 937.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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, 25.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 22.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 208 SDtfs, 148 SDslu, 811 SDs, 0 SdLazy, 221 SolverSat, 15 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 20.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.6s 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, 1.6s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 5 QuantifiedInterpolants, 26830 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...