/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0886a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0886a_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 b5ae4fcad33c7717ff816746f555456661abff77 ......................................................................................................................................................... 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_0886a_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 b5ae4fcad33c7717ff816746f555456661abff77 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:26:11,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:26:11,695 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:26:11,714 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:26:11,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:26:11,716 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:26:11,717 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:26:11,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:26:11,722 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:26:11,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:26:11,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:26:11,724 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:26:11,725 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:26:11,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:26:11,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:26:11,727 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:26:11,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:26:11,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:26:11,732 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:26:11,734 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:26:11,735 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:26:11,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:26:11,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:26:11,739 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:26:11,739 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:26:11,740 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:26:11,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:26:11,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:26:11,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:26:11,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:26:11,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:26:11,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:26:11,746 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:26:11,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:26:11,747 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:26:11,750 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:26:11,751 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:26:11,778 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:26:11,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:26:11,781 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:26:11,781 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:26:11,785 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:26:11,785 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:26:11,785 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:26:11,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:26:11,786 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:26:11,786 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:26:11,786 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:26:11,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:26:11,786 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:26:11,786 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:26:11,787 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:26:11,787 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:26:11,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:26:11,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:26:11,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:26:11,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:26:11,789 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:26:11,789 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:26:11,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:26:11,790 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:26:11,790 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:26:11,790 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:26:11,790 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:26:11,790 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:26:11,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:26:11,791 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 -> b5ae4fcad33c7717ff816746f555456661abff77 [2018-09-20 15:26:11,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:26:11,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:26:11,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:26:11,874 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:26:11,874 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:26:11,875 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0886a_true-unreach-call.c [2018-09-20 15:26:12,247 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3869cf37/02dc57b5f436425b8e718fb5900d4261/FLAG98ba66a0a [2018-09-20 15:26:12,451 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:26:12,452 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0886a_true-unreach-call.c [2018-09-20 15:26:12,466 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3869cf37/02dc57b5f436425b8e718fb5900d4261/FLAG98ba66a0a [2018-09-20 15:26:12,485 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3869cf37/02dc57b5f436425b8e718fb5900d4261 [2018-09-20 15:26:12,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:26:12,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:26:12,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:26:12,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:26:12,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:26:12,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:26:12" (1/1) ... [2018-09-20 15:26:12,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29619efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:12, skipping insertion in model container [2018-09-20 15:26:12,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:26:12" (1/1) ... [2018-09-20 15:26:12,521 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:26:12,854 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$38(StandardFunctionHandler.java:261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-20 15:26:12,859 INFO L168 Benchmark]: Toolchain (without parser) took 368.38 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:12,862 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:26:12,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.51 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:26:12,866 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.51 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:26:15,043 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:26:15,045 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:26:15,058 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:26:15,058 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:26:15,060 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:26:15,062 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:26:15,064 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:26:15,066 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:26:15,067 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:26:15,068 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:26:15,068 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:26:15,069 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:26:15,071 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:26:15,072 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:26:15,073 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:26:15,074 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:26:15,076 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:26:15,079 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:26:15,081 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:26:15,082 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:26:15,084 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:26:15,087 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:26:15,087 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:26:15,087 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:26:15,088 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:26:15,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:26:15,091 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:26:15,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:26:15,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:26:15,093 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:26:15,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:26:15,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:26:15,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:26:15,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:26:15,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:26:15,097 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:26:15,115 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:26:15,115 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:26:15,116 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:26:15,117 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:26:15,117 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:26:15,118 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:26:15,118 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:26:15,118 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:26:15,118 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:26:15,119 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:26:15,119 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:26:15,119 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:26:15,120 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:26:15,120 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:26:15,120 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:26:15,120 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:26:15,120 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:26:15,121 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:26:15,121 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:26:15,121 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:26:15,121 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:26:15,123 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:26:15,123 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:26:15,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:26:15,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:26:15,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:26:15,124 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:26:15,124 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:26:15,124 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:26:15,124 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:26:15,124 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:26:15,126 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 -> b5ae4fcad33c7717ff816746f555456661abff77 [2018-09-20 15:26:15,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:26:15,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:26:15,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:26:15,220 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:26:15,220 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:26:15,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0886a_true-unreach-call.c [2018-09-20 15:26:15,601 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f2adf4d/8da9643c73ad4a2caad696717b7759c3/FLAG6bbb4d202 [2018-09-20 15:26:15,851 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:26:15,855 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0886a_true-unreach-call.c [2018-09-20 15:26:15,883 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f2adf4d/8da9643c73ad4a2caad696717b7759c3/FLAG6bbb4d202 [2018-09-20 15:26:15,913 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f2adf4d/8da9643c73ad4a2caad696717b7759c3 [2018-09-20 15:26:15,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:26:15,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:26:15,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:26:15,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:26:15,936 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:26:15,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:26:15" (1/1) ... [2018-09-20 15:26:15,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334e0d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:15, skipping insertion in model container [2018-09-20 15:26:15,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:26:15" (1/1) ... [2018-09-20 15:26:15,954 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:26:16,377 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:26:16,407 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:26:16,605 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:26:16,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16 WrapperNode [2018-09-20 15:26:16,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:26:16,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:26:16,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:26:16,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:26:16,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... [2018-09-20 15:26:16,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:26:16,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:26:16,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:26:16,882 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:26:16,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:26:17,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:26:17,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:26:17,094 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-20 15:26:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:26:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-20 15:26:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-20 15:26:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:26:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-20 15:26:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-20 15:26:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isinteger_float [2018-09-20 15:26:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:26:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:26:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:26:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:26:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-20 15:26:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:26:17,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:26:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:26:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:26:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:26:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:26:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:26:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-20 15:26:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-20 15:26:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:26:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-20 15:26:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-20 15:26:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure isinteger_float [2018-09-20 15:26:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:26:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:26:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:26:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:26:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:26:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:26:17,566 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:17,581 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:17,622 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:17,661 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:17,847 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:17,894 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:18,057 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:18,077 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:23,024 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:23,051 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:23,371 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:23,378 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:25,107 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:25,127 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:27,429 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:27,437 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:29,592 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:29,628 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:31,744 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:31,751 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:32,663 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:32,670 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:34,751 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:34,758 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:37,032 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:37,042 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:39,369 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:39,408 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:41,921 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:41,935 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:42,425 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:42,442 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:42,991 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:42,996 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:43,141 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:43,147 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:43,364 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:43,378 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:43,416 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:43,436 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:44,380 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:44,387 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:45,669 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:45,709 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:26:45,714 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:26:45,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:26:45 BoogieIcfgContainer [2018-09-20 15:26:45,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:26:45,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:26:45,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:26:45,721 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:26:45,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:26:15" (1/3) ... [2018-09-20 15:26:45,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea8f187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:26:45, skipping insertion in model container [2018-09-20 15:26:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:26:16" (2/3) ... [2018-09-20 15:26:45,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea8f187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:26:45, skipping insertion in model container [2018-09-20 15:26:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:26:45" (3/3) ... [2018-09-20 15:26:45,725 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0886a_true-unreach-call.c [2018-09-20 15:26:45,738 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:26:45,748 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:26:45,825 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:26:45,826 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:26:45,827 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:26:45,828 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:26:45,828 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:26:45,828 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:26:45,828 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:26:45,828 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:26:45,829 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:26:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states. [2018-09-20 15:26:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:26:45,908 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:26:45,910 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] [2018-09-20 15:26:45,913 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:26:45,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1904819352, now seen corresponding path program 1 times [2018-09-20 15:26:45,926 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:26:45,927 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:26:45,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:26:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:26:46,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:26:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:26:46,199 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:26:46,225 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:26:46,226 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:26:46,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:26:46,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:26:46,249 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:26:46,252 INFO L87 Difference]: Start difference. First operand 620 states. Second operand 2 states. [2018-09-20 15:26:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:26:46,378 INFO L93 Difference]: Finished difference Result 1231 states and 1600 transitions. [2018-09-20 15:26:46,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:26:46,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:26:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:26:46,417 INFO L225 Difference]: With dead ends: 1231 [2018-09-20 15:26:46,419 INFO L226 Difference]: Without dead ends: 615 [2018-09-20 15:26:46,433 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 [2018-09-20 15:26:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-09-20 15:26:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2018-09-20 15:26:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-09-20 15:26:46,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 705 transitions. [2018-09-20 15:26:46,557 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 705 transitions. Word has length 22 [2018-09-20 15:26:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:26:46,558 INFO L480 AbstractCegarLoop]: Abstraction has 615 states and 705 transitions. [2018-09-20 15:26:46,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:26:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 705 transitions. [2018-09-20 15:26:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:26:46,562 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:26:46,562 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] [2018-09-20 15:26:46,563 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:26:46,563 INFO L82 PathProgramCache]: Analyzing trace with hash -289349596, now seen corresponding path program 1 times [2018-09-20 15:26:46,565 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:26:46,566 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 [2018-09-20 15:26:46,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:26:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:26:46,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:26:46,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:26:46,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:26:46,848 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:26:46,849 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 15:26:46,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 15:26:46,852 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 15:26:46,852 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 15:26:46,852 INFO L87 Difference]: Start difference. First operand 615 states and 705 transitions. Second operand 4 states. [2018-09-20 15:26:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:26:47,000 INFO L93 Difference]: Finished difference Result 1152 states and 1315 transitions. [2018-09-20 15:26:47,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 15:26:47,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-09-20 15:26:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:26:47,010 INFO L225 Difference]: With dead ends: 1152 [2018-09-20 15:26:47,010 INFO L226 Difference]: Without dead ends: 615 [2018-09-20 15:26:47,013 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-20 15:26:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-09-20 15:26:47,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2018-09-20 15:26:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2018-09-20 15:26:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 703 transitions. [2018-09-20 15:26:47,047 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 703 transitions. Word has length 40 [2018-09-20 15:26:47,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:26:47,047 INFO L480 AbstractCegarLoop]: Abstraction has 615 states and 703 transitions. [2018-09-20 15:26:47,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 15:26:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 703 transitions. [2018-09-20 15:26:47,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-09-20 15:26:47,052 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:26:47,053 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:26:47,053 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:26:47,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1903723855, now seen corresponding path program 1 times [2018-09-20 15:26:47,056 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:26:47,056 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:26:47,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:26:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:26:47,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:26:47,774 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 [2018-09-20 15:26:47,793 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 [2018-09-20 15:26:47,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:26:47,838 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:47,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:47,913 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:28 [2018-09-20 15:26:48,037 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 [2018-09-20 15:26:48,052 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 [2018-09-20 15:26:48,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,081 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:16 [2018-09-20 15:26:48,369 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 [2018-09-20 15:26:48,414 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 [2018-09-20 15:26:48,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,434 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,489 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,489 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:37 [2018-09-20 15:26:48,635 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 [2018-09-20 15:26:48,652 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 [2018-09-20 15:26:48,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,741 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:26:48,768 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:25 [2018-09-20 15:26:49,244 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-20 15:26:51,351 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_fmod_float_#res| (let ((.cse1 (fp.mul RNE |c_fmod_float_#in~x| |c_fmod_float_#in~y|))) (fp.div RNE .cse1 .cse1))))) (or (and .cse0 (exists ((v_prenex_3 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_prenex_3) ((_ extract 30 23) v_prenex_3) ((_ extract 22 0) v_prenex_3)) |c_fmod_float_#in~x|)) (exists ((v_prenex_4 (_ BitVec 32))) (and (bvsgt (bvand v_prenex_4 (_ bv2147483647 32)) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)) |c_fmod_float_#in~y|)))) (and (exists ((v_fmod_float_~hx~0_34 (_ BitVec 32))) (and (not (bvslt (bvxor v_fmod_float_~hx~0_34 (bvand v_fmod_float_~hx~0_34 (_ bv2147483648 32))) (_ bv2139095040 32))) (= (fp ((_ extract 31 31) v_fmod_float_~hx~0_34) ((_ extract 30 23) v_fmod_float_~hx~0_34) ((_ extract 22 0) v_fmod_float_~hx~0_34)) |c_fmod_float_#in~x|))) .cse0 (exists ((v_fmod_float_~hy~0_19 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_fmod_float_~hy~0_19) ((_ extract 30 23) v_fmod_float_~hy~0_19) ((_ extract 22 0) v_fmod_float_~hy~0_19)) |c_fmod_float_#in~y|))) (and (exists ((v_prenex_1 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)) |c_fmod_float_#in~x|)) .cse0 (exists ((v_prenex_2 (_ BitVec 32))) (and (= (_ bv0 32) (bvand v_prenex_2 (_ bv2147483647 32))) (= (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)) |c_fmod_float_#in~y|)))))) is different from false [2018-09-20 15:27:19,467 WARN L178 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-20 15:27:21,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:27:21,218 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:27:21,235 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:21,235 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-20 15:27:21,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-20 15:27:21,236 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-20 15:27:21,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=166, Unknown=9, NotChecked=26, Total=240 [2018-09-20 15:27:21,236 INFO L87 Difference]: Start difference. First operand 615 states and 703 transitions. Second operand 16 states. [2018-09-20 15:30:30,163 WARN L178 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2018-09-20 15:31:05,135 WARN L178 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2018-09-20 15:31:18,621 WARN L178 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 28 [2018-09-20 15:31:36,161 WARN L178 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 30 [2018-09-20 15:32:18,678 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-09-20 15:32:18,679 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:690) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-09-20 15:32:18,683 INFO L168 Benchmark]: Toolchain (without parser) took 362763.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:18,687 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:32:18,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 919.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:18,688 INFO L168 Benchmark]: Boogie Preprocessor took 204.81 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 MB in the beginning and 908.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:18,689 INFO L168 Benchmark]: RCFGBuilder took 28833.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 908.9 MB in the beginning and 992.1 MB in the end (delta: -83.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:32:18,693 INFO L168 Benchmark]: TraceAbstraction took 332966.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 992.1 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:32:18,700 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 749.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 919.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 204.81 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 MB in the beginning and 908.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 28833.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 908.9 MB in the beginning and 992.1 MB in the end (delta: -83.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332966.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 992.1 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...