/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0871_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 c8e8abfb5c7f00af5458874fe4edf5815fd4b197 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0871_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 c8e8abfb5c7f00af5458874fe4edf5815fd4b197 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:28:30,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:28:30,483 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:28:30,505 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:28:30,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:28:30,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:28:30,509 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:28:30,512 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:28:30,515 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:28:30,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:28:30,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:28:30,521 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:28:30,523 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:28:30,527 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:28:30,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:28:30,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:28:30,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:28:30,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:28:30,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:28:30,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:28:30,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:28:30,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:28:30,562 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:28:30,563 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:28:30,563 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:28:30,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:28:30,566 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:28:30,568 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:28:30,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:28:30,572 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:28:30,573 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:28:30,574 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:28:30,575 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:28:30,575 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:28:30,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:28:30,579 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:28:30,579 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:28:30,598 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:28:30,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:28:30,600 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:28:30,600 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:28:30,601 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:28:30,601 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:28:30,601 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:28:30,601 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:28:30,602 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:28:30,602 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:28:30,602 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:28:30,602 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:28:30,602 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:28:30,602 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:28:30,603 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:28:30,603 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:28:30,603 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:28:30,603 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:28:30,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:28:30,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:28:30,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:28:30,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:28:30,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:28:30,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:28:30,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:28:30,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:28:30,606 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:28:30,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:28:30,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:28:30,607 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 -> c8e8abfb5c7f00af5458874fe4edf5815fd4b197 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:28:30,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:28:30,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:28:30,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:28:30,687 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:28:30,687 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:28:30,688 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-21 18:28:31,038 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37df86a9e/f81249ec5eff45cd95182f7078e7e745/FLAG41608033c [2018-09-21 18:28:31,256 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:28:31,263 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-21 18:28:31,284 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37df86a9e/f81249ec5eff45cd95182f7078e7e745/FLAG41608033c [2018-09-21 18:28:31,303 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37df86a9e/f81249ec5eff45cd95182f7078e7e745 [2018-09-21 18:28:31,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:28:31,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:28:31,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:28:31,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:28:31,320 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:28:31,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:28:31" (1/1) ... [2018-09-21 18:28:31,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2576490b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:31, skipping insertion in model container [2018-09-21 18:28:31,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:28:31" (1/1) ... [2018-09-21 18:28:31,337 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:28:31,649 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$38(StandardFunctionHandler.java:261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-21 18:28:31,660 INFO L168 Benchmark]: Toolchain (without parser) took 351.29 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:28:31,662 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:28:31,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:28:31,666 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * 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 0.1.23-5eb3fea [2018-09-21 18:28:33,855 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:28:33,859 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:28:33,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:28:33,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:28:33,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:28:33,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:28:33,882 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:28:33,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:28:33,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:28:33,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:28:33,888 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:28:33,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:28:33,890 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:28:33,891 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:28:33,892 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:28:33,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:28:33,894 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:28:33,896 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:28:33,898 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:28:33,899 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:28:33,900 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:28:33,905 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:28:33,905 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:28:33,905 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:28:33,909 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:28:33,913 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:28:33,914 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:28:33,915 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:28:33,919 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:28:33,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:28:33,922 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:28:33,922 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:28:33,922 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:28:33,923 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:28:33,926 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:28:33,926 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:28:33,958 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:28:33,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:28:33,961 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:28:33,961 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:28:33,962 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:28:33,963 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:28:33,964 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:28:33,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:28:33,965 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:28:33,965 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:28:33,965 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:28:33,965 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:28:33,965 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:28:33,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:28:33,966 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:28:33,966 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:28:33,966 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:28:33,966 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:28:33,966 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:28:33,969 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:28:33,969 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:28:33,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:28:33,969 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:28:33,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:28:33,970 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:28:33,971 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:28:33,971 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:28:33,971 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:28:33,971 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:28:33,972 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:28:33,972 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:28:33,972 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 -> c8e8abfb5c7f00af5458874fe4edf5815fd4b197 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:28:34,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:28:34,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:28:34,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:28:34,054 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:28:34,055 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:28:34,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-21 18:28:34,415 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c527ba9dc/abf0addb797f499aa62f5c68a1f88200/FLAGb15a864a9 [2018-09-21 18:28:34,707 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:28:34,707 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-21 18:28:34,723 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c527ba9dc/abf0addb797f499aa62f5c68a1f88200/FLAGb15a864a9 [2018-09-21 18:28:34,740 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c527ba9dc/abf0addb797f499aa62f5c68a1f88200 [2018-09-21 18:28:34,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:28:34,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:28:34,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:28:34,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:28:34,759 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:28:34,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:28:34" (1/1) ... [2018-09-21 18:28:34,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb51be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:34, skipping insertion in model container [2018-09-21 18:28:34,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:28:34" (1/1) ... [2018-09-21 18:28:34,780 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:28:35,205 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:28:35,231 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:28:35,349 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:28:35,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35 WrapperNode [2018-09-21 18:28:35,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:28:35,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:28:35,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:28:35,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:28:35,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... [2018-09-21 18:28:35,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:28:35,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:28:35,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:28:35,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:28:35,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:28:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:28:35,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:28:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-21 18:28:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:28:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-21 18:28:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-21 18:28:35,808 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:28:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-21 18:28:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:28:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:28:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:28:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-21 18:28:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:28:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:28:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:28:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:28:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:28:35,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:28:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:28:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:28:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:28:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:28:36,346 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,392 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,525 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,551 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,750 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,795 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,912 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:36,918 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:42,072 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:42,080 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:42,306 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:42,311 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:44,494 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:44,528 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:46,982 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:46,991 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:49,131 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:49,137 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:51,251 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:51,261 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:51,577 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:51,600 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:53,742 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:53,751 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:55,710 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:55,718 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:58,094 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:28:58,122 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:00,794 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:00,830 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:01,441 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:01,486 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:01,619 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:01,629 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:02,003 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:02,011 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:02,020 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:02,041 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:02,480 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:02,487 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:04,003 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:29:04,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:29:04 BoogieIcfgContainer [2018-09-21 18:29:04,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:29:04,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:29:04,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:29:04,009 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:29:04,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:28:34" (1/3) ... [2018-09-21 18:29:04,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a45b856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:29:04, skipping insertion in model container [2018-09-21 18:29:04,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:28:35" (2/3) ... [2018-09-21 18:29:04,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a45b856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:29:04, skipping insertion in model container [2018-09-21 18:29:04,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:29:04" (3/3) ... [2018-09-21 18:29:04,014 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0871_true-unreach-call.c [2018-09-21 18:29:04,025 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:29:04,035 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:29:04,081 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:29:04,082 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:29:04,082 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:29:04,082 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:29:04,082 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:29:04,082 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:29:04,082 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:29:04,083 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:29:04,083 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:29:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states. [2018-09-21 18:29:04,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 18:29:04,134 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:29:04,135 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:29:04,137 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:29:04,142 INFO L82 PathProgramCache]: Analyzing trace with hash 93333362, now seen corresponding path program 1 times [2018-09-21 18:29:04,147 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:29:04,147 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:29:04,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:29:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:29:04,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:29:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:29:04,357 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:29:04,377 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:29:04,377 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:29:04,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:29:04,399 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:29:04,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:29:04,403 INFO L87 Difference]: Start difference. First operand 483 states. Second operand 2 states. [2018-09-21 18:29:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:29:04,489 INFO L93 Difference]: Finished difference Result 483 states and 545 transitions. [2018-09-21 18:29:04,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:29:04,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 18:29:04,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:29:04,533 INFO L225 Difference]: With dead ends: 483 [2018-09-21 18:29:04,533 INFO L226 Difference]: Without dead ends: 479 [2018-09-21 18:29:04,535 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:29:04,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2018-09-21 18:29:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2018-09-21 18:29:04,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-21 18:29:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 541 transitions. [2018-09-21 18:29:04,653 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 541 transitions. Word has length 17 [2018-09-21 18:29:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:29:04,653 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 541 transitions. [2018-09-21 18:29:04,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:29:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 541 transitions. [2018-09-21 18:29:04,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:29:04,655 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:29:04,655 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] [2018-09-21 18:29:04,655 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:29:04,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1338552630, now seen corresponding path program 1 times [2018-09-21 18:29:04,657 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:29:04,657 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:29:04,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:29:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:29:04,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:29:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:29:04,957 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:29:04,972 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:29:04,972 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:29:04,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:29:04,975 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:29:04,975 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:29:04,975 INFO L87 Difference]: Start difference. First operand 479 states and 541 transitions. Second operand 6 states. [2018-09-21 18:29:18,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:29:18,087 INFO L93 Difference]: Finished difference Result 563 states and 634 transitions. [2018-09-21 18:29:18,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 18:29:18,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-09-21 18:29:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:29:18,102 INFO L225 Difference]: With dead ends: 563 [2018-09-21 18:29:18,102 INFO L226 Difference]: Without dead ends: 559 [2018-09-21 18:29:18,103 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:29:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2018-09-21 18:29:18,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 479. [2018-09-21 18:29:18,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-21 18:29:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 538 transitions. [2018-09-21 18:29:18,135 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 538 transitions. Word has length 35 [2018-09-21 18:29:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:29:18,137 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 538 transitions. [2018-09-21 18:29:18,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:29:18,137 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 538 transitions. [2018-09-21 18:29:18,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:29:18,138 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:29:18,138 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] [2018-09-21 18:29:18,139 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:29:18,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1014915215, now seen corresponding path program 1 times [2018-09-21 18:29:18,140 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:29:18,141 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:29:18,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:29:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:29:18,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:29:18,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:29:18,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:29:18,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:29:18,404 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:29:18,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:29:18,422 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:29:18,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:29:18,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:29:18,455 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:29:18,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:29:18,463 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:29:18,464 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:29:18,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:29:18,673 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:29:18,688 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:29:18,689 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:29:18,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:29:18,689 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:29:18,690 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:29:18,690 INFO L87 Difference]: Start difference. First operand 479 states and 538 transitions. Second operand 9 states. [2018-09-21 18:29:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:29:26,340 INFO L93 Difference]: Finished difference Result 589 states and 658 transitions. [2018-09-21 18:29:26,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:29:26,342 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-09-21 18:29:26,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:29:26,344 INFO L225 Difference]: With dead ends: 589 [2018-09-21 18:29:26,344 INFO L226 Difference]: Without dead ends: 351 [2018-09-21 18:29:26,345 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:29:26,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-21 18:29:26,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-21 18:29:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-21 18:29:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 394 transitions. [2018-09-21 18:29:26,360 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 394 transitions. Word has length 37 [2018-09-21 18:29:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:29:26,361 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 394 transitions. [2018-09-21 18:29:26,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:29:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 394 transitions. [2018-09-21 18:29:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:29:26,362 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:29:26,362 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:29:26,363 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:29:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1480191573, now seen corresponding path program 1 times [2018-09-21 18:29:26,364 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:29:26,364 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 [2018-09-21 18:29:26,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:29:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:29:26,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:29:37,244 WARN L178 SmtUtils]: Spent 4.78 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:29:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:29:38,051 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:29:38,071 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:29:38,071 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:29:38,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:29:38,072 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:29:38,072 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:29:38,073 INFO L87 Difference]: Start difference. First operand 349 states and 394 transitions. Second operand 8 states. [2018-09-21 18:29:59,842 WARN L178 SmtUtils]: Spent 5.09 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:30:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:25,739 INFO L93 Difference]: Finished difference Result 355 states and 399 transitions. [2018-09-21 18:30:25,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-21 18:30:25,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-09-21 18:30:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:25,948 INFO L225 Difference]: With dead ends: 355 [2018-09-21 18:30:25,948 INFO L226 Difference]: Without dead ends: 351 [2018-09-21 18:30:25,949 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:30:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-21 18:30:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-21 18:30:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-21 18:30:25,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 393 transitions. [2018-09-21 18:30:25,959 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 393 transitions. Word has length 40 [2018-09-21 18:30:25,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:25,960 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 393 transitions. [2018-09-21 18:30:25,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:30:25,960 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 393 transitions. [2018-09-21 18:30:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:30:25,963 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:25,963 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:30:25,963 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:25,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1451562422, now seen corresponding path program 1 times [2018-09-21 18:30:25,964 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:25,964 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) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:25,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:26,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:26,212 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:26,228 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:26,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:30:26,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:30:26,229 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:30:26,229 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:30:26,231 INFO L87 Difference]: Start difference. First operand 349 states and 393 transitions. Second operand 7 states. [2018-09-21 18:30:31,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:31,533 INFO L93 Difference]: Finished difference Result 353 states and 396 transitions. [2018-09-21 18:30:31,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:30:31,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-09-21 18:30:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:31,550 INFO L225 Difference]: With dead ends: 353 [2018-09-21 18:30:31,552 INFO L226 Difference]: Without dead ends: 348 [2018-09-21 18:30:31,552 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:30:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-09-21 18:30:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2018-09-21 18:30:31,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-21 18:30:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 391 transitions. [2018-09-21 18:30:31,562 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 391 transitions. Word has length 40 [2018-09-21 18:30:31,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:31,562 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 391 transitions. [2018-09-21 18:30:31,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:30:31,563 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 391 transitions. [2018-09-21 18:30:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-21 18:30:31,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:31,570 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:30:31,571 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:31,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1194494709, now seen corresponding path program 1 times [2018-09-21 18:30:31,571 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:31,572 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:31,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:31,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:32,703 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:30:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:33,001 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:33,013 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:33,014 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:30:33,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:30:33,014 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:30:33,014 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:30:33,015 INFO L87 Difference]: Start difference. First operand 348 states and 391 transitions. Second operand 7 states. [2018-09-21 18:30:34,403 WARN L178 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:30:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:45,210 INFO L93 Difference]: Finished difference Result 352 states and 394 transitions. [2018-09-21 18:30:45,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:30:45,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-09-21 18:30:45,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:45,226 INFO L225 Difference]: With dead ends: 352 [2018-09-21 18:30:45,226 INFO L226 Difference]: Without dead ends: 348 [2018-09-21 18:30:45,227 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:30:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-09-21 18:30:45,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2018-09-21 18:30:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-21 18:30:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 390 transitions. [2018-09-21 18:30:45,237 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 390 transitions. Word has length 40 [2018-09-21 18:30:45,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:45,238 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 390 transitions. [2018-09-21 18:30:45,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:30:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 390 transitions. [2018-09-21 18:30:45,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-21 18:30:45,242 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:45,242 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] [2018-09-21 18:30:45,242 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:45,242 INFO L82 PathProgramCache]: Analyzing trace with hash -104605087, now seen corresponding path program 1 times [2018-09-21 18:30:45,243 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:45,243 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:45,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:45,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:45,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:45,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:45,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:45,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:45,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:45,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:30:45,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:45,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:45,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:45,700 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:45,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:45,703 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:30:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:45,917 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:45,930 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:45,930 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:30:45,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:30:45,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:30:45,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:30:45,932 INFO L87 Difference]: Start difference. First operand 348 states and 390 transitions. Second operand 11 states. [2018-09-21 18:30:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:49,061 INFO L93 Difference]: Finished difference Result 359 states and 401 transitions. [2018-09-21 18:30:49,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:30:49,062 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2018-09-21 18:30:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:49,064 INFO L225 Difference]: With dead ends: 359 [2018-09-21 18:30:49,064 INFO L226 Difference]: Without dead ends: 354 [2018-09-21 18:30:49,065 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:30:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-09-21 18:30:49,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 348. [2018-09-21 18:30:49,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-21 18:30:49,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 389 transitions. [2018-09-21 18:30:49,076 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 389 transitions. Word has length 59 [2018-09-21 18:30:49,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:49,076 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 389 transitions. [2018-09-21 18:30:49,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:30:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 389 transitions. [2018-09-21 18:30:49,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-21 18:30:49,078 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:49,078 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] [2018-09-21 18:30:49,080 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:49,081 INFO L82 PathProgramCache]: Analyzing trace with hash 625146228, now seen corresponding path program 1 times [2018-09-21 18:30:49,081 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:49,081 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:49,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:49,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:49,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:49,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:49,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:49,318 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:49,331 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:49,332 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:30:49,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:49,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:49,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:49,362 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:49,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:49,370 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:30:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:49,559 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:49,571 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:49,571 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:30:49,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:30:49,572 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:30:49,572 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:30:49,572 INFO L87 Difference]: Start difference. First operand 348 states and 389 transitions. Second operand 11 states. [2018-09-21 18:30:53,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:53,006 INFO L93 Difference]: Finished difference Result 359 states and 400 transitions. [2018-09-21 18:30:53,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:30:53,007 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2018-09-21 18:30:53,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:53,010 INFO L225 Difference]: With dead ends: 359 [2018-09-21 18:30:53,010 INFO L226 Difference]: Without dead ends: 354 [2018-09-21 18:30:53,011 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:30:53,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-09-21 18:30:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 348. [2018-09-21 18:30:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-21 18:30:53,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 388 transitions. [2018-09-21 18:30:53,022 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 388 transitions. Word has length 60 [2018-09-21 18:30:53,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:53,022 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 388 transitions. [2018-09-21 18:30:53,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:30:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 388 transitions. [2018-09-21 18:30:53,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-21 18:30:53,025 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:53,025 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] [2018-09-21 18:30:53,025 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:53,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1162250043, now seen corresponding path program 1 times [2018-09-21 18:30:53,026 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:53,026 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:53,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:53,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:53,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:53,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:53,544 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:53,548 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:53,560 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:53,560 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:30:53,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:53,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:53,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:53,595 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:53,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:53,599 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:30:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:53,784 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:53,798 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:53,798 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:30:53,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:30:53,798 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:30:53,799 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:30:53,799 INFO L87 Difference]: Start difference. First operand 348 states and 388 transitions. Second operand 10 states. [2018-09-21 18:30:57,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:57,025 INFO L93 Difference]: Finished difference Result 357 states and 397 transitions. [2018-09-21 18:30:57,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:30:57,028 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2018-09-21 18:30:57,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:57,030 INFO L225 Difference]: With dead ends: 357 [2018-09-21 18:30:57,030 INFO L226 Difference]: Without dead ends: 352 [2018-09-21 18:30:57,031 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:30:57,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-09-21 18:30:57,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 348. [2018-09-21 18:30:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-21 18:30:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 387 transitions. [2018-09-21 18:30:57,040 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 387 transitions. Word has length 61 [2018-09-21 18:30:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:57,041 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 387 transitions. [2018-09-21 18:30:57,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:30:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 387 transitions. [2018-09-21 18:30:57,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-21 18:30:57,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:57,044 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] [2018-09-21 18:30:57,045 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:57,045 INFO L82 PathProgramCache]: Analyzing trace with hash -517848722, now seen corresponding path program 1 times [2018-09-21 18:30:57,045 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:57,046 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:57,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:57,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:57,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:57,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:57,864 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:57,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:57,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:57,896 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:29 [2018-09-21 18:30:57,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:57,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:57,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:57,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:57,961 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:57,961 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:17 [2018-09-21 18:30:58,047 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 13 treesize of output 10 [2018-09-21 18:30:58,052 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 10 treesize of output 9 [2018-09-21 18:30:58,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:58,058 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:58,077 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. [2018-09-21 18:30:58,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-09-21 18:30:58,156 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 31 treesize of output 23 [2018-09-21 18:30:58,164 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 23 treesize of output 15 [2018-09-21 18:30:58,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:58,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:58,188 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. [2018-09-21 18:30:58,188 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:32 [2018-09-21 18:31:43,907 WARN L178 SmtUtils]: Spent 4.27 s on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:31:49,752 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2018-09-21 18:31:49,754 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)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:893) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:732) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:338) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:430) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-09-21 18:31:49,758 INFO L168 Benchmark]: Toolchain (without parser) took 195012.65 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.7 MB). Free memory was 949.2 MB in the beginning and 1.2 GB in the end (delta: -262.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:31:49,759 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:31:49,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 917.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:31:49,764 INFO L168 Benchmark]: Boogie Preprocessor took 163.68 ms. Allocated memory is still 1.0 GB. Free memory was 917.0 MB in the beginning and 911.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:31:49,765 INFO L168 Benchmark]: RCFGBuilder took 28424.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 911.6 MB in the beginning and 969.7 MB in the end (delta: -58.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:31:49,768 INFO L168 Benchmark]: TraceAbstraction took 165752.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.1 MB). Free memory was 969.7 MB in the beginning and 1.2 GB in the end (delta: -241.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:31:49,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 663.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 917.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 163.68 ms. Allocated memory is still 1.0 GB. Free memory was 917.0 MB in the beginning and 911.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 28424.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 911.6 MB in the beginning and 969.7 MB in the end (delta: -58.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 165752.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.1 MB). Free memory was 969.7 MB in the beginning and 1.2 GB in the end (delta: -241.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...