/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 -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_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 ......................................................................................................................................................... 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 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-40ef509 [2018-09-20 15:21:39,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:21:39,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:21:39,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:21:39,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:21:39,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:21:39,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:21:39,513 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:21:39,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:21:39,516 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:21:39,517 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:21:39,517 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:21:39,518 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:21:39,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:21:39,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:21:39,521 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:21:39,522 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:21:39,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:21:39,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:21:39,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:21:39,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:21:39,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:21:39,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:21:39,534 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:21:39,534 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:21:39,535 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:21:39,536 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:21:39,537 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:21:39,538 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:21:39,539 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:21:39,539 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:21:39,541 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:21:39,542 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:21:39,542 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:21:39,543 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:21:39,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:21:39,544 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:21:39,577 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:21:39,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:21:39,579 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:21:39,579 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:21:39,580 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:21:39,580 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:21:39,580 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:21:39,581 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:21:39,581 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:21:39,581 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:21:39,581 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:21:39,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:21:39,587 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:21:39,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:21:39,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:21:39,588 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:21:39,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:21:39,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:21:39,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:21:39,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:21:39,589 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:21:39,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:21:39,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:21:39,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:21:39,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:21:39,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:21:39,593 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:21:39,593 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:21:39,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:21:39,594 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 [2018-09-20 15:21:39,673 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:21:39,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:21:39,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:21:39,700 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:21:39,700 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:21:39,701 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-20 15:21:40,049 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a31ae34/6b537de526d74fda900dfcc3f7abc36e/FLAGc07ffa0ee [2018-09-20 15:21:40,230 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:21:40,231 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-20 15:21:40,247 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a31ae34/6b537de526d74fda900dfcc3f7abc36e/FLAGc07ffa0ee [2018-09-20 15:21:40,272 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a31ae34/6b537de526d74fda900dfcc3f7abc36e [2018-09-20 15:21:40,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:21:40,279 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:21:40,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:21:40,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:21:40,287 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:21:40,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:21:40" (1/1) ... [2018-09-20 15:21:40,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11149e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:40, skipping insertion in model container [2018-09-20 15:21:40,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:21:40" (1/1) ... [2018-09-20 15:21:40,304 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:21:40,637 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$38(StandardFunctionHandler.java:261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-20 15:21:40,642 INFO L168 Benchmark]: Toolchain (without parser) took 365.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:40,644 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. [2018-09-20 15:21:40,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:21:40,648 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 360.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:21:42,856 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:21:42,858 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:21:42,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:21:42,875 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:21:42,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:21:42,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:21:42,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:21:42,882 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:21:42,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:21:42,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:21:42,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:21:42,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:21:42,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:21:42,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:21:42,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:21:42,890 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:21:42,897 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:21:42,899 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:21:42,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:21:42,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:21:42,907 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:21:42,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:21:42,913 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:21:42,913 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:21:42,915 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:21:42,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:21:42,920 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:21:42,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:21:42,926 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:21:42,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:21:42,927 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:21:42,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:21:42,928 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:21:42,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:21:42,929 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:21:42,932 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:21:42,962 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:21:42,963 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:21:42,964 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:21:42,968 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:21:42,968 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:21:42,969 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:21:42,969 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:21:42,969 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:21:42,970 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:21:42,971 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:21:42,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:21:42,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:21:42,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:21:42,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:21:42,971 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:21:42,972 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:21:42,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:21:42,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:21:42,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:21:42,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:21:42,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:21:42,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:21:42,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:21:42,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:21:42,974 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:21:42,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:21:42,975 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:21:42,975 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:21:42,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:21:42,976 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:21:42,976 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:21:42,976 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 [2018-09-20 15:21:43,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:21:43,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:21:43,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:21:43,058 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:21:43,058 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:21:43,059 INFO L418 ainManager$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 [2018-09-20 15:21:43,405 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf86a3962/0b8f5a8af7334d4ea00ac48b2db3ee07/FLAGdb40b497e [2018-09-20 15:21:43,630 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:21:43,632 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0871_true-unreach-call.c [2018-09-20 15:21:43,644 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf86a3962/0b8f5a8af7334d4ea00ac48b2db3ee07/FLAGdb40b497e [2018-09-20 15:21:43,667 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf86a3962/0b8f5a8af7334d4ea00ac48b2db3ee07 [2018-09-20 15:21:43,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:21:43,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:21:43,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:21:43,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:21:43,687 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:21:43,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:21:43" (1/1) ... [2018-09-20 15:21:43,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11149e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:43, skipping insertion in model container [2018-09-20 15:21:43,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:21:43" (1/1) ... [2018-09-20 15:21:43,704 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:21:44,178 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:21:44,209 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:21:44,399 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:21:44,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44 WrapperNode [2018-09-20 15:21:44,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:21:44,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:21:44,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:21:44,445 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:21:44,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... [2018-09-20 15:21:44,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:21:44,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:21:44,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:21:44,574 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:21:44,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:21:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:21:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:21:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-20 15:21:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:21:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-20 15:21:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-20 15:21:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:21:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-20 15:21:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:21:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:21:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:21:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-20 15:21:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:21:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:21:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:21:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:21:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:21:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:21:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:21:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-20 15:21:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-20 15:21:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:21:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-20 15:21:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:21:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:21:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:21:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:21:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:21:45,154 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,186 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,308 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,334 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,475 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,489 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,519 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:45,526 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:50,746 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:50,773 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:51,270 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:51,279 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:53,132 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:53,141 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:55,382 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:55,392 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:57,571 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:57,615 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:59,855 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:21:59,862 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:00,369 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:00,380 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:01,462 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:01,468 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:04,804 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:04,811 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:07,162 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:07,169 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:09,248 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:09,261 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:09,789 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:09,804 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:09,941 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:09,949 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:10,374 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:10,381 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:10,407 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:10,447 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:11,741 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:11,746 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:22:12,452 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:22:12,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:22:12 BoogieIcfgContainer [2018-09-20 15:22:12,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:22:12,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:22:12,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:22:12,458 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:22:12,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:21:43" (1/3) ... [2018-09-20 15:22:12,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f64dc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:22:12, skipping insertion in model container [2018-09-20 15:22:12,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:21:44" (2/3) ... [2018-09-20 15:22:12,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f64dc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:22:12, skipping insertion in model container [2018-09-20 15:22:12,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:22:12" (3/3) ... [2018-09-20 15:22:12,466 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0871_true-unreach-call.c [2018-09-20 15:22:12,476 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:22:12,485 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:22:12,546 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:22:12,547 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:22:12,547 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:22:12,547 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:22:12,547 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:22:12,548 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:22:12,548 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:22:12,548 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:22:12,549 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:22:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states. [2018-09-20 15:22:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:22:12,599 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:22:12,602 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:22:12,605 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:22:12,610 INFO L82 PathProgramCache]: Analyzing trace with hash 93333362, now seen corresponding path program 1 times [2018-09-20 15:22:12,615 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:22:12,615 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:22:12,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:22:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:22:12,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:22:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:22:12,810 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:22:12,825 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:22:12,825 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:22:12,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:22:12,845 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:22:12,846 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:22:12,850 INFO L87 Difference]: Start difference. First operand 483 states. Second operand 2 states. [2018-09-20 15:22:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:22:12,936 INFO L93 Difference]: Finished difference Result 958 states and 1230 transitions. [2018-09-20 15:22:12,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:22:12,938 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:22:12,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:22:12,963 INFO L225 Difference]: With dead ends: 958 [2018-09-20 15:22:12,964 INFO L226 Difference]: Without dead ends: 479 [2018-09-20 15:22:12,974 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 [2018-09-20 15:22:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2018-09-20 15:22:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2018-09-20 15:22:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-20 15:22:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 541 transitions. [2018-09-20 15:22:13,065 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 541 transitions. Word has length 17 [2018-09-20 15:22:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:22:13,066 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 541 transitions. [2018-09-20 15:22:13,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:22:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 541 transitions. [2018-09-20 15:22:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:22:13,069 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:22:13,069 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] [2018-09-20 15:22:13,070 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:22:13,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1338552630, now seen corresponding path program 1 times [2018-09-20 15:22:13,071 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:22:13,072 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:22:13,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:22:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:22:13,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:22:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:22:13,393 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:22:13,408 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:22:13,408 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-20 15:22:13,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-20 15:22:13,410 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-20 15:22:13,410 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-20 15:22:13,411 INFO L87 Difference]: Start difference. First operand 479 states and 541 transitions. Second operand 6 states. [2018-09-20 15:22:26,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:22:26,555 INFO L93 Difference]: Finished difference Result 565 states and 636 transitions. [2018-09-20 15:22:26,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-20 15:22:26,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-09-20 15:22:26,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:22:26,566 INFO L225 Difference]: With dead ends: 565 [2018-09-20 15:22:26,566 INFO L226 Difference]: Without dead ends: 559 [2018-09-20 15:22:26,568 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 [2018-09-20 15:22:26,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2018-09-20 15:22:26,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 479. [2018-09-20 15:22:26,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-20 15:22:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 538 transitions. [2018-09-20 15:22:26,617 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 538 transitions. Word has length 35 [2018-09-20 15:22:26,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:22:26,617 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 538 transitions. [2018-09-20 15:22:26,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-20 15:22:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 538 transitions. [2018-09-20 15:22:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-20 15:22:26,620 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:22:26,620 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] [2018-09-20 15:22:26,620 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:22:26,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1014915215, now seen corresponding path program 1 times [2018-09-20 15:22:26,622 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:22:26,622 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:22:26,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:22:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:22:26,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:22:26,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:22:26,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:22:26,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:22:26,878 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:22:26,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:22:26,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:22:26,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:22:26,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:22:26,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:22:26,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:22:26,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:22:26,928 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:22:27,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:22:27,097 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:22:27,113 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:22:27,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:22:27,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:22:27,114 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:22:27,114 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:22:27,114 INFO L87 Difference]: Start difference. First operand 479 states and 538 transitions. Second operand 9 states. [2018-09-20 15:22:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:22:35,098 INFO L93 Difference]: Finished difference Result 593 states and 663 transitions. [2018-09-20 15:22:35,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:22:35,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-09-20 15:22:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:22:35,103 INFO L225 Difference]: With dead ends: 593 [2018-09-20 15:22:35,103 INFO L226 Difference]: Without dead ends: 351 [2018-09-20 15:22:35,105 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 [2018-09-20 15:22:35,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-20 15:22:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-20 15:22:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-20 15:22:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 394 transitions. [2018-09-20 15:22:35,128 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 394 transitions. Word has length 37 [2018-09-20 15:22:35,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:22:35,129 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 394 transitions. [2018-09-20 15:22:35,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:22:35,129 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 394 transitions. [2018-09-20 15:22:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:22:35,130 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:22:35,131 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:22:35,131 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:22:35,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1480191573, now seen corresponding path program 1 times [2018-09-20 15:22:35,160 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:22:35,160 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:22:35,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:22:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:22:35,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:22:44,736 WARN L178 SmtUtils]: Spent 3.13 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:22:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:22:46,587 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:22:46,607 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:22:46,607 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:22:46,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:22:46,608 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:22:46,608 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:22:46,608 INFO L87 Difference]: Start difference. First operand 349 states and 394 transitions. Second operand 8 states. [2018-09-20 15:23:02,617 WARN L178 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:23:29,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:29,415 INFO L93 Difference]: Finished difference Result 357 states and 401 transitions. [2018-09-20 15:23:29,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-20 15:23:29,436 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-09-20 15:23:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:29,438 INFO L225 Difference]: With dead ends: 357 [2018-09-20 15:23:29,438 INFO L226 Difference]: Without dead ends: 351 [2018-09-20 15:23:29,439 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:23:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-20 15:23:29,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-20 15:23:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-20 15:23:29,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 393 transitions. [2018-09-20 15:23:29,456 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 393 transitions. Word has length 40 [2018-09-20 15:23:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:29,457 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 393 transitions. [2018-09-20 15:23:29,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:23:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 393 transitions. [2018-09-20 15:23:29,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:23:29,459 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:29,459 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:23:29,460 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:29,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1451562422, now seen corresponding path program 1 times [2018-09-20 15:23:29,461 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:29,461 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 [2018-09-20 15:23:29,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:23:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:29,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:29,692 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:29,712 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:29,712 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 15:23:29,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 15:23:29,713 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 15:23:29,713 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:23:29,713 INFO L87 Difference]: Start difference. First operand 349 states and 393 transitions. Second operand 7 states. [2018-09-20 15:23:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:34,115 INFO L93 Difference]: Finished difference Result 355 states and 398 transitions. [2018-09-20 15:23:34,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:23:34,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-09-20 15:23:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:34,124 INFO L225 Difference]: With dead ends: 355 [2018-09-20 15:23:34,124 INFO L226 Difference]: Without dead ends: 348 [2018-09-20 15:23:34,125 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 [2018-09-20 15:23:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-09-20 15:23:34,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2018-09-20 15:23:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-20 15:23:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 391 transitions. [2018-09-20 15:23:34,148 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 391 transitions. Word has length 40 [2018-09-20 15:23:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:34,149 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 391 transitions. [2018-09-20 15:23:34,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 15:23:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 391 transitions. [2018-09-20 15:23:34,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-20 15:23:34,153 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:34,153 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:23:34,154 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:34,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1194494709, now seen corresponding path program 1 times [2018-09-20 15:23:34,154 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:34,154 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) [2018-09-20 15:23:34,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-20 15:23:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:34,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:35,033 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-20 15:23:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:35,425 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:35,437 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:35,437 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 15:23:35,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 15:23:35,438 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 15:23:35,438 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:23:35,438 INFO L87 Difference]: Start difference. First operand 348 states and 391 transitions. Second operand 7 states. [2018-09-20 15:23:37,044 WARN L178 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:23:48,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:48,423 INFO L93 Difference]: Finished difference Result 354 states and 396 transitions. [2018-09-20 15:23:48,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:23:48,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-09-20 15:23:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:48,443 INFO L225 Difference]: With dead ends: 354 [2018-09-20 15:23:48,443 INFO L226 Difference]: Without dead ends: 348 [2018-09-20 15:23:48,444 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:23:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-09-20 15:23:48,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2018-09-20 15:23:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-20 15:23:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 390 transitions. [2018-09-20 15:23:48,458 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 390 transitions. Word has length 40 [2018-09-20 15:23:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:48,459 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 390 transitions. [2018-09-20 15:23:48,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 15:23:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 390 transitions. [2018-09-20 15:23:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-20 15:23:48,461 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:48,461 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] [2018-09-20 15:23:48,463 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:48,463 INFO L82 PathProgramCache]: Analyzing trace with hash -104605087, now seen corresponding path program 1 times [2018-09-20 15:23:48,463 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:48,463 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 [2018-09-20 15:23:48,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:23:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:48,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:48,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:23:48,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:23:48,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,799 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,812 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:23:48,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:23:48,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:23:48,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:48,909 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:23:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:49,219 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:49,232 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:49,232 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:23:49,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:23:49,233 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:23:49,233 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:23:49,234 INFO L87 Difference]: Start difference. First operand 348 states and 390 transitions. Second operand 11 states. [2018-09-20 15:23:50,099 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:23:55,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:55,397 INFO L93 Difference]: Finished difference Result 363 states and 405 transitions. [2018-09-20 15:23:55,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:23:55,398 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2018-09-20 15:23:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:55,403 INFO L225 Difference]: With dead ends: 363 [2018-09-20 15:23:55,404 INFO L226 Difference]: Without dead ends: 354 [2018-09-20 15:23:55,404 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:23:55,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-09-20 15:23:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 348. [2018-09-20 15:23:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-20 15:23:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 389 transitions. [2018-09-20 15:23:55,426 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 389 transitions. Word has length 59 [2018-09-20 15:23:55,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:55,427 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 389 transitions. [2018-09-20 15:23:55,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:23:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 389 transitions. [2018-09-20 15:23:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-20 15:23:55,433 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:55,433 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] [2018-09-20 15:23:55,434 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:55,434 INFO L82 PathProgramCache]: Analyzing trace with hash 625146228, now seen corresponding path program 1 times [2018-09-20 15:23:55,436 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:55,436 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 [2018-09-20 15:23:55,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:23:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:23:55,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:23:55,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:23:55,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:23:55,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:55,668 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:55,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:55,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:23:55,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:23:55,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:23:55,726 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:23:55,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:55,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:23:55,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:23:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:23:55,951 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:23:55,963 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:23:55,963 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:23:55,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:23:55,964 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:23:55,964 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:23:55,965 INFO L87 Difference]: Start difference. First operand 348 states and 389 transitions. Second operand 11 states. [2018-09-20 15:23:57,309 WARN L178 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:23:59,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:23:59,831 INFO L93 Difference]: Finished difference Result 363 states and 404 transitions. [2018-09-20 15:23:59,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:23:59,832 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2018-09-20 15:23:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:23:59,835 INFO L225 Difference]: With dead ends: 363 [2018-09-20 15:23:59,835 INFO L226 Difference]: Without dead ends: 354 [2018-09-20 15:23:59,836 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:23:59,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-09-20 15:23:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 348. [2018-09-20 15:23:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-20 15:23:59,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 388 transitions. [2018-09-20 15:23:59,853 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 388 transitions. Word has length 60 [2018-09-20 15:23:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:23:59,854 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 388 transitions. [2018-09-20 15:23:59,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:23:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 388 transitions. [2018-09-20 15:23:59,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-20 15:23:59,856 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:23:59,856 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] [2018-09-20 15:23:59,856 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:23:59,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1162250043, now seen corresponding path program 1 times [2018-09-20 15:23:59,859 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:23:59,859 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 [2018-09-20 15:23:59,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:00,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:00,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:00,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:00,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:00,312 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:00,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:00,326 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:24:00,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:00,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:00,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:00,362 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:00,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:00,366 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:24:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:24:00,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:24:00,541 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:24:00,541 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:24:00,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:24:00,542 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:24:00,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:24:00,543 INFO L87 Difference]: Start difference. First operand 348 states and 388 transitions. Second operand 10 states. [2018-09-20 15:24:02,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:24:02,762 INFO L93 Difference]: Finished difference Result 361 states and 401 transitions. [2018-09-20 15:24:02,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:24:02,764 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2018-09-20 15:24:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:24:02,766 INFO L225 Difference]: With dead ends: 361 [2018-09-20 15:24:02,767 INFO L226 Difference]: Without dead ends: 352 [2018-09-20 15:24:02,767 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:24:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-09-20 15:24:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 348. [2018-09-20 15:24:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-09-20 15:24:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 387 transitions. [2018-09-20 15:24:02,782 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 387 transitions. Word has length 61 [2018-09-20 15:24:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:24:02,784 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 387 transitions. [2018-09-20 15:24:02,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:24:02,785 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 387 transitions. [2018-09-20 15:24:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-20 15:24:02,786 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:24:02,787 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] [2018-09-20 15:24:02,788 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:24:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash -517848722, now seen corresponding path program 1 times [2018-09-20 15:24:02,789 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:24:02,789 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 [2018-09-20 15:24:02,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:24:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:24:03,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:24:03,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:24:03,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:24:03,314 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,339 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:29 [2018-09-20 15:24:03,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:24:03,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:24:03,391 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,397 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,408 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:17 [2018-09-20 15:24:03,505 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 [2018-09-20 15:24:03,511 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 [2018-09-20 15:24:03,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,521 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:24:03,541 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-09-20 15:24:03,618 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 [2018-09-20 15:24:03,625 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 [2018-09-20 15:24:03,626 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,630 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:24:03,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:24:03,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:32 [2018-09-20 15:24:08,581 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2018-09-20 15:24:08,583 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 [2018-09-20 15:24:08,593 INFO L168 Benchmark]: Toolchain (without parser) took 144920.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.0 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -216.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:24:08,597 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. [2018-09-20 15:24:08,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 919.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:24:08,598 INFO L168 Benchmark]: Boogie Preprocessor took 128.18 ms. Allocated memory is still 1.0 GB. Free memory was 919.6 MB in the beginning and 914.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:24:08,599 INFO L168 Benchmark]: RCFGBuilder took 27879.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 914.3 MB in the beginning and 987.6 MB in the end (delta: -73.3 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:24:08,602 INFO L168 Benchmark]: TraceAbstraction took 116137.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.9 MB). Free memory was 987.6 MB in the beginning and 1.2 GB in the end (delta: -180.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:24:08,611 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 764.59 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 919.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.18 ms. Allocated memory is still 1.0 GB. Free memory was 919.6 MB in the beginning and 914.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 27879.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 914.3 MB in the beginning and 987.6 MB in the end (delta: -73.3 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 116137.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.9 MB). Free memory was 987.6 MB in the beginning and 1.2 GB in the end (delta: -180.8 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...