/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0878_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0878_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 2aef7ca4163aab797bee08bbad3c2496354d8576 ......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0878_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 2aef7ca4163aab797bee08bbad3c2496354d8576 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:51:21,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:51:21,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:51:21,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:51:21,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:51:21,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:51:21,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:51:21,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:51:21,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:51:21,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:51:21,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:51:21,824 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:51:21,826 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:51:21,830 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:51:21,833 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:51:21,834 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:51:21,835 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:51:21,840 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:51:21,846 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:51:21,849 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:51:21,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:51:21,855 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:51:21,860 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:51:21,862 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:51:21,863 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:51:21,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:51:21,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:51:21,865 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:51:21,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:51:21,873 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:51:21,875 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:51:21,876 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:51:21,876 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:51:21,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:51:21,879 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:51:21,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:51:21,883 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:51:21,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:51:21,902 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:51:21,902 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:51:21,903 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:51:21,903 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:51:21,903 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:51:21,904 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:51:21,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:51:21,904 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:51:21,904 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:51:21,904 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:51:21,904 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:51:21,905 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:51:21,905 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:51:21,905 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:51:21,905 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:51:21,905 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:51:21,906 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:51:21,906 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:51:21,906 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:51:21,906 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:51:21,906 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:51:21,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:51:21,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:51:21,908 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:51:21,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:51:21,909 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:51:21,909 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:51:21,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:51:21,909 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 -> 2aef7ca4163aab797bee08bbad3c2496354d8576 [2018-09-20 14:51:21,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:51:21,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:51:22,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:51:22,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:51:22,004 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:51:22,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0878_true-unreach-call.c [2018-09-20 14:51:22,371 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb788598/74c2d3831795452cbdeda1345865a3c9/FLAGb905ab5d6 [2018-09-20 14:51:22,651 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:51:22,652 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0878_true-unreach-call.c [2018-09-20 14:51:22,677 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb788598/74c2d3831795452cbdeda1345865a3c9/FLAGb905ab5d6 [2018-09-20 14:51:22,702 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb788598/74c2d3831795452cbdeda1345865a3c9 [2018-09-20 14:51:22,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:51:22,711 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:51:22,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:51:22,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:51:22,722 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:51:22,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:51:22" (1/1) ... [2018-09-20 14:51:22,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d55e7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:22, skipping insertion in model container [2018-09-20 14:51:22,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:51:22" (1/1) ... [2018-09-20 14:51:22,740 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:51:23,147 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$37(StandardFunctionHandler.java:260) 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 14:51:23,153 INFO L168 Benchmark]: Toolchain (without parser) took 444.96 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:51:23,156 INFO L168 Benchmark]: CDTParser took 0.44 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 14:51:23,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:51:23,160 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 439.98 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 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 14:51:25,410 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:51:25,412 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:51:25,434 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:51:25,434 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:51:25,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:51:25,437 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:51:25,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:51:25,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:51:25,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:51:25,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:51:25,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:51:25,444 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:51:25,446 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:51:25,447 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:51:25,448 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:51:25,449 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:51:25,451 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:51:25,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:51:25,455 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:51:25,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:51:25,460 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:51:25,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:51:25,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:51:25,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:51:25,469 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:51:25,470 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:51:25,471 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:51:25,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:51:25,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:51:25,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:51:25,474 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:51:25,474 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:51:25,474 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:51:25,475 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:51:25,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:51:25,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:51:25,501 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:51:25,501 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:51:25,502 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:51:25,502 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:51:25,503 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:51:25,503 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:51:25,504 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:51:25,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:51:25,504 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:51:25,504 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:51:25,504 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:51:25,505 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:51:25,505 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:51:25,505 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:51:25,505 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:51:25,505 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:51:25,506 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:51:25,507 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:51:25,507 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:51:25,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:51:25,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:51:25,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:51:25,508 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:51:25,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:51:25,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:51:25,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:51:25,509 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:51:25,510 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:51:25,510 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:51:25,510 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:51:25,510 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:51:25,511 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 -> 2aef7ca4163aab797bee08bbad3c2496354d8576 [2018-09-20 14:51:25,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:51:25,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:51:25,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:51:25,590 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:51:25,590 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:51:25,591 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0878_true-unreach-call.c [2018-09-20 14:51:25,975 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f9e97be/075e7686b3c641ee9ada38db5ff21fc1/FLAG04c0ac071 [2018-09-20 14:51:26,252 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:51:26,253 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0878_true-unreach-call.c [2018-09-20 14:51:26,270 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f9e97be/075e7686b3c641ee9ada38db5ff21fc1/FLAG04c0ac071 [2018-09-20 14:51:26,285 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f9e97be/075e7686b3c641ee9ada38db5ff21fc1 [2018-09-20 14:51:26,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:51:26,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:51:26,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:51:26,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:51:26,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:51:26,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:51:26" (1/1) ... [2018-09-20 14:51:26,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8bd498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:26, skipping insertion in model container [2018-09-20 14:51:26,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:51:26" (1/1) ... [2018-09-20 14:51:26,318 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:51:26,828 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:51:26,858 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:51:27,118 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:51:27,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27 WrapperNode [2018-09-20 14:51:27,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:51:27,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:51:27,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:51:27,206 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:51:27,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (1/1) ... [2018-09-20 14:51:27,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:51:27,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:51:27,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:51:27,525 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:51:27,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (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 14:51:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:51:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:51:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-09-20 14:51:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-09-20 14:51:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-20 14:51:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-20 14:51:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-09-20 14:51:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 14:51:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 14:51:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-09-20 14:51:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isinteger_double [2018-09-20 14:51:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-20 14:51:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:51:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:51:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 14:51:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-09-20 14:51:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 14:51:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 14:51:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 14:51:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 14:51:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 14:51:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 14:51:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-09-20 14:51:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-20 14:51:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-20 14:51:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-09-20 14:51:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 14:51:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 14:51:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-09-20 14:51:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure isinteger_double [2018-09-20 14:51:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-20 14:51:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:51:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:51:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:51:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 14:51:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 14:51:28,100 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:28,618 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:28,634 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:29,191 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:29,232 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:30,337 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:31,775 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:31,864 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:31,876 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:31,907 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:31,921 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:31,943 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:32,085 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:32,109 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:32,125 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:33,243 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:33,302 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:33,409 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:35,854 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:35,886 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:38,557 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:40,798 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:43,120 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:44,379 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:46,748 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:46,789 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:46,839 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:46,968 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:47,013 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:48,605 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:55,508 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:55,520 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:55,539 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:55,550 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:56,037 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:59,028 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:59,039 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:51:59,078 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:13,598 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:13,908 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:13,918 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:14,336 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:14,392 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:14,471 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:17,798 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:17,839 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:17,850 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:18,827 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:18,837 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:18,850 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:21,811 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:21,824 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:21,844 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:21,889 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:21,899 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:23,177 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 14:52:25,837 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:52:25,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:52:25 BoogieIcfgContainer [2018-09-20 14:52:25,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:52:25,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:52:25,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:52:25,844 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:52:25,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:51:26" (1/3) ... [2018-09-20 14:52:25,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab4935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:52:25, skipping insertion in model container [2018-09-20 14:52:25,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:51:27" (2/3) ... [2018-09-20 14:52:25,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab4935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:52:25, skipping insertion in model container [2018-09-20 14:52:25,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:52:25" (3/3) ... [2018-09-20 14:52:25,850 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0878_true-unreach-call.c [2018-09-20 14:52:25,861 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:52:25,871 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:52:25,930 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:52:25,931 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:52:25,931 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:52:25,931 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:52:25,932 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:52:25,932 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:52:25,932 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:52:25,932 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:52:25,932 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:52:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states. [2018-09-20 14:52:25,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 14:52:25,985 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:52:25,987 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 14:52:25,989 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:52:25,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1231243879, now seen corresponding path program 1 times [2018-09-20 14:52:25,999 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:52:26,000 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 14:52:26,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:52:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:52:26,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:52:26,288 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 14:52:26,288 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:52:26,304 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:52:26,305 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 14:52:26,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 14:52:26,323 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 14:52:26,324 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 14:52:26,327 INFO L87 Difference]: Start difference. First operand 672 states. Second operand 2 states. [2018-09-20 14:52:26,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:52:26,454 INFO L93 Difference]: Finished difference Result 1333 states and 1751 transitions. [2018-09-20 14:52:26,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 14:52:26,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 14:52:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:52:26,487 INFO L225 Difference]: With dead ends: 1333 [2018-09-20 14:52:26,489 INFO L226 Difference]: Without dead ends: 667 [2018-09-20 14:52:26,502 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 14:52:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2018-09-20 14:52:26,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2018-09-20 14:52:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2018-09-20 14:52:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 792 transitions. [2018-09-20 14:52:26,601 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 792 transitions. Word has length 22 [2018-09-20 14:52:26,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:52:26,602 INFO L480 AbstractCegarLoop]: Abstraction has 667 states and 792 transitions. [2018-09-20 14:52:26,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 14:52:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 792 transitions. [2018-09-20 14:52:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 14:52:26,606 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:52:26,606 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] [2018-09-20 14:52:26,607 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:52:26,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2045314595, now seen corresponding path program 1 times [2018-09-20 14:52:26,608 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:52:26,608 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 14:52:26,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:52:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:52:26,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:52:26,907 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 14:52:26,907 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:52:26,928 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:52:26,928 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-20 14:52:26,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-20 14:52:26,932 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-20 14:52:26,932 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-20 14:52:26,932 INFO L87 Difference]: Start difference. First operand 667 states and 792 transitions. Second operand 4 states. [2018-09-20 14:52:27,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:52:27,104 INFO L93 Difference]: Finished difference Result 1273 states and 1507 transitions. [2018-09-20 14:52:27,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 14:52:27,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-09-20 14:52:27,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:52:27,111 INFO L225 Difference]: With dead ends: 1273 [2018-09-20 14:52:27,112 INFO L226 Difference]: Without dead ends: 667 [2018-09-20 14:52:27,115 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 14:52:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2018-09-20 14:52:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2018-09-20 14:52:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2018-09-20 14:52:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 790 transitions. [2018-09-20 14:52:27,146 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 790 transitions. Word has length 48 [2018-09-20 14:52:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:52:27,147 INFO L480 AbstractCegarLoop]: Abstraction has 667 states and 790 transitions. [2018-09-20 14:52:27,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-20 14:52:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 790 transitions. [2018-09-20 14:52:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-20 14:52:27,153 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:52:27,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:52:27,154 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:52:27,154 INFO L82 PathProgramCache]: Analyzing trace with hash -768587992, now seen corresponding path program 1 times [2018-09-20 14:52:27,155 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:52:27,155 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 14:52:27,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:52:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:52:28,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:52:28,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:52:28,764 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:52:28,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:52:28,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:52:28,842 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:52:28,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-20 14:52:28,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:52:28,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:52:28,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:52:29,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:52:29,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:52:29,061 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-20 14:52:29,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:52:29,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:52:29,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:52:29,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:52:29,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 14:52:29,390 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-20 14:52:29,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:52:29,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:52:29,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:52:29,571 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:52:29,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 14:52:29,646 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-20 14:52:30,744 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2018-09-20 14:52:31,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:52:31,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:52:31,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:52:31,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:52:31,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:52:31,221 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:52:31,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:52:31,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:52:31,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:52:31,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:52:31,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:52:31,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:52:32,444 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 14:52:32,444 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:52:32,481 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:52:32,481 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-20 14:52:32,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-20 14:52:32,482 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-20 14:52:32,483 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-09-20 14:52:32,483 INFO L87 Difference]: Start difference. First operand 667 states and 790 transitions. Second operand 18 states. [2018-09-20 14:52:34,735 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-20 14:52:35,339 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-20 14:52:36,960 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 14:52:37,470 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-20 14:52:38,006 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-20 14:52:47,430 WARN L178 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-09-20 14:52:49,868 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-09-20 14:52:54,032 WARN L178 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-20 14:52:58,050 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-20 14:53:31,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:53:31,784 INFO L93 Difference]: Finished difference Result 761 states and 906 transitions. [2018-09-20 14:53:31,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-20 14:53:31,789 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2018-09-20 14:53:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:53:31,797 INFO L225 Difference]: With dead ends: 761 [2018-09-20 14:53:31,798 INFO L226 Difference]: Without dead ends: 740 [2018-09-20 14:53:31,800 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=165, Invalid=1241, Unknown=0, NotChecked=0, Total=1406 [2018-09-20 14:53:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2018-09-20 14:53:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 720. [2018-09-20 14:53:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-09-20 14:53:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 859 transitions. [2018-09-20 14:53:31,848 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 859 transitions. Word has length 111 [2018-09-20 14:53:31,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:53:31,849 INFO L480 AbstractCegarLoop]: Abstraction has 720 states and 859 transitions. [2018-09-20 14:53:31,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-20 14:53:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 859 transitions. [2018-09-20 14:53:31,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-20 14:53:31,857 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:53:31,857 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, 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 14:53:31,857 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:53:31,859 INFO L82 PathProgramCache]: Analyzing trace with hash -644640436, now seen corresponding path program 1 times [2018-09-20 14:53:31,859 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:53:31,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 14:53:31,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:53:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:53:33,298 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:53:33,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:53:33,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:53:33,381 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:53:33,387 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:53:33,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:53:33,404 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 14:53:33,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:53:33,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:53:33,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:53:33,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:53:33,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:53:33,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 14:53:33,758 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 14:53:33,758 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:53:33,791 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:53:33,792 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 14:53:33,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 14:53:33,792 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 14:53:33,793 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 14:53:33,793 INFO L87 Difference]: Start difference. First operand 720 states and 859 transitions. Second operand 9 states. [2018-09-20 14:53:34,569 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 14:53:35,024 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 14:53:36,199 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-20 14:53:36,732 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-20 14:53:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:53:55,254 INFO L93 Difference]: Finished difference Result 843 states and 996 transitions. [2018-09-20 14:53:55,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 14:53:55,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2018-09-20 14:53:55,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:53:55,264 INFO L225 Difference]: With dead ends: 843 [2018-09-20 14:53:55,264 INFO L226 Difference]: Without dead ends: 819 [2018-09-20 14:53:55,265 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-20 14:53:55,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2018-09-20 14:53:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 720. [2018-09-20 14:53:55,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-09-20 14:53:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 856 transitions. [2018-09-20 14:53:55,306 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 856 transitions. Word has length 113 [2018-09-20 14:53:55,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:53:55,307 INFO L480 AbstractCegarLoop]: Abstraction has 720 states and 856 transitions. [2018-09-20 14:53:55,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 14:53:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 856 transitions. [2018-09-20 14:53:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-20 14:53:55,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:53:55,310 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, 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 14:53:55,311 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:53:55,311 INFO L82 PathProgramCache]: Analyzing trace with hash 242863245, now seen corresponding path program 1 times [2018-09-20 14:53:55,312 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:53:55,313 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 14:53:55,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 14:53:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:53:56,815 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:53:56,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:53:56,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:53:56,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:53:57,003 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:53:57,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:53:57,065 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-09-20 14:53:57,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:53:57,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:53:57,200 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:53:57,243 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:53:57,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 14:53:57,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:20 [2018-09-20 14:53:57,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 14:53:57,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 14:53:57,611 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:53:57,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:53:57,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 14:53:57,765 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-09-20 14:53:57,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 14:53:58,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 14:53:58,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 14:53:58,062 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 14:53:58,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 14:53:58,126 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:48, output treesize:33 [2018-09-20 14:53:58,778 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-20 14:54:01,209 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_fmod_double_#res| (let ((.cse2 (fp.mul RNE |c_fmod_double_#in~x| |c_fmod_double_#in~y|))) (fp.div RNE .cse2 .cse2))))) (or (and .cse0 (exists ((v_prenex_11 (_ BitVec 64))) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11)))) (exists ((v_prenex_12 (_ BitVec 64))) (and (bvsge (let ((.cse1 ((_ extract 63 32) v_prenex_12))) (bvxor .cse1 (bvand .cse1 (_ bv2147483648 32)))) (_ bv2146435072 32)) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_12) ((_ extract 62 52) v_prenex_12) ((_ extract 51 0) v_prenex_12)))))) (and .cse0 (exists ((|v_q#valueAsBitvector_61| (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_61|) ((_ extract 62 52) |v_q#valueAsBitvector_61|) ((_ extract 51 0) |v_q#valueAsBitvector_61|)))) (exists ((|v_q#valueAsBitvector_62| (_ BitVec 64)) (fmod_double_~ly~1 (_ BitVec 32))) (and (= (_ bv0 32) (bvor (bvand ((_ extract 63 32) |v_q#valueAsBitvector_62|) (_ bv2147483647 32)) fmod_double_~ly~1)) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_62|) ((_ extract 62 52) |v_q#valueAsBitvector_62|) ((_ extract 51 0) |v_q#valueAsBitvector_62|)))))) (and .cse0 (exists ((v_prenex_8 (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_8) ((_ extract 62 52) v_prenex_8) ((_ extract 51 0) v_prenex_8)))) (exists ((v_prenex_9 (_ BitVec 32)) (v_prenex_7 (_ BitVec 64))) (and (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7))) (bvugt (bvor (bvand ((_ extract 63 32) v_prenex_7) (_ bv2147483647 32)) (bvlshr (bvor v_prenex_9 (bvneg v_prenex_9)) (_ bv31 32))) (_ bv2146435072 32))))))) is different from false [2018-09-20 14:54:03,686 WARN L819 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_fmod_double_#res| (let ((.cse2 (fp.mul RNE |c_fmod_double_#in~x| |c_fmod_double_#in~y|))) (fp.div RNE .cse2 .cse2))))) (or (and .cse0 (exists ((v_prenex_11 (_ BitVec 64))) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11)))) (exists ((v_prenex_12 (_ BitVec 64))) (and (bvsge (let ((.cse1 ((_ extract 63 32) v_prenex_12))) (bvxor .cse1 (bvand .cse1 (_ bv2147483648 32)))) (_ bv2146435072 32)) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_12) ((_ extract 62 52) v_prenex_12) ((_ extract 51 0) v_prenex_12)))))) (and .cse0 (exists ((|v_q#valueAsBitvector_61| (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_61|) ((_ extract 62 52) |v_q#valueAsBitvector_61|) ((_ extract 51 0) |v_q#valueAsBitvector_61|)))) (exists ((|v_q#valueAsBitvector_62| (_ BitVec 64)) (fmod_double_~ly~1 (_ BitVec 32))) (and (= (_ bv0 32) (bvor (bvand ((_ extract 63 32) |v_q#valueAsBitvector_62|) (_ bv2147483647 32)) fmod_double_~ly~1)) (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) |v_q#valueAsBitvector_62|) ((_ extract 62 52) |v_q#valueAsBitvector_62|) ((_ extract 51 0) |v_q#valueAsBitvector_62|)))))) (and .cse0 (exists ((v_prenex_8 (_ BitVec 64))) (= |c_fmod_double_#in~x| (fp ((_ extract 63 63) v_prenex_8) ((_ extract 62 52) v_prenex_8) ((_ extract 51 0) v_prenex_8)))) (exists ((v_prenex_9 (_ BitVec 32)) (v_prenex_7 (_ BitVec 64))) (and (= |c_fmod_double_#in~y| (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7))) (bvugt (bvor (bvand ((_ extract 63 32) v_prenex_7) (_ bv2147483647 32)) (bvlshr (bvor v_prenex_9 (bvneg v_prenex_9)) (_ bv31 32))) (_ bv2146435072 32))))))) is different from true [2018-09-20 14:54:43,515 WARN L178 SmtUtils]: Spent 2.57 s on a formula simplification that was a NOOP. DAG size: 22 [2018-09-20 14:54:52,261 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 14:54:52,261 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:54:52,288 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:54:52,289 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-20 14:54:52,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 14:54:52,290 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 14:54:52,290 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=136, Unknown=13, NotChecked=24, Total=210 [2018-09-20 14:54:52,291 INFO L87 Difference]: Start difference. First operand 720 states and 856 transitions. Second operand 15 states. [2018-09-20 14:54:57,863 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-09-20 14:54:57,865 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: Broken pipe at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:326) 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 14:54:57,870 INFO L168 Benchmark]: Toolchain (without parser) took 211579.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.9 MB). Free memory was 954.6 MB in the beginning and 991.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 273.2 MB. Max. memory is 11.5 GB. [2018-09-20 14:54:57,871 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 14:54:57,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 911.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 910.3 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2018-09-20 14:54:57,872 INFO L168 Benchmark]: Boogie Preprocessor took 318.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 910.3 MB in the beginning and 1.1 GB in the end (delta: -218.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:54:57,877 INFO L168 Benchmark]: RCFGBuilder took 58313.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.2 MB in the end (delta: 173.6 MB). Peak memory consumption was 173.6 MB. Max. memory is 11.5 GB. [2018-09-20 14:54:57,878 INFO L168 Benchmark]: TraceAbstraction took 152029.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.6 MB). Free memory was 955.2 MB in the beginning and 991.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 128.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:54:57,883 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 911.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 910.3 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 318.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 910.3 MB in the beginning and 1.1 GB in the end (delta: -218.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 58313.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.2 MB in the end (delta: 173.6 MB). Peak memory consumption was 173.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 152029.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.6 MB). Free memory was 955.2 MB in the beginning and 991.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 128.7 MB. 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...