/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873b_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 8b9f1d4d604db7902b4170bb3ee6b57db84e8a88 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873b_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 8b9f1d4d604db7902b4170bb3ee6b57db84e8a88 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:57:58,596 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:57:58,598 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:57:58,610 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:57:58,610 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:57:58,611 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:57:58,612 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:57:58,614 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:57:58,616 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:57:58,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:57:58,617 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:57:58,618 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:57:58,619 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:57:58,620 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:57:58,621 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:57:58,621 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:57:58,622 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:57:58,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:57:58,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:57:58,627 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:57:58,628 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:57:58,629 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:57:58,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:57:58,632 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:57:58,632 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:57:58,633 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:57:58,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:57:58,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:57:58,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:57:58,637 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:57:58,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:57:58,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:57:58,638 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:57:58,638 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:57:58,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:57:58,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:57:58,640 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:57:58,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:57:58,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:57:58,664 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:57:58,664 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:57:58,664 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:57:58,665 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:57:58,665 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:57:58,665 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:57:58,665 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:57:58,665 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:57:58,665 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:57:58,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:57:58,666 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:57:58,666 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:57:58,666 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:57:58,666 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:57:58,666 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:57:58,667 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:57:58,667 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:57:58,667 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:57:58,667 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:57:58,667 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:57:58,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:57:58,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:57:58,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:57:58,668 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:57:58,668 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:57:58,669 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:57:58,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:57:58,669 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 -> 8b9f1d4d604db7902b4170bb3ee6b57db84e8a88 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 17:57:58,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:57:58,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:57:58,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:57:58,735 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:57:58,735 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:57:58,736 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873b_true-unreach-call.c [2018-09-21 17:57:59,083 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b3006cb/d7b1fef1fe1b4a41909999f4623ad134/FLAG083f238f2 [2018-09-21 17:57:59,275 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:57:59,276 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0873b_true-unreach-call.c [2018-09-21 17:57:59,291 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b3006cb/d7b1fef1fe1b4a41909999f4623ad134/FLAG083f238f2 [2018-09-21 17:57:59,306 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b3006cb/d7b1fef1fe1b4a41909999f4623ad134 [2018-09-21 17:57:59,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:57:59,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:57:59,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:57:59,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:57:59,323 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:57:59,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:57:59" (1/1) ... [2018-09-21 17:57:59,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4343732a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:59, skipping insertion in model container [2018-09-21 17:57:59,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:57:59" (1/1) ... [2018-09-21 17:57:59,339 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:57:59,714 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$37(StandardFunctionHandler.java:260) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-21 17:57:59,717 INFO L168 Benchmark]: Toolchain (without parser) took 406.88 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:59,719 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:57:59,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:59,722 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:58:01,959 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:58:01,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:58:01,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:58:01,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:58:01,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:58:01,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:58:01,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:58:01,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:58:01,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:58:01,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:58:01,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:58:01,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:58:01,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:58:01,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:58:01,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:58:01,987 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:58:01,988 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:58:01,990 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:58:01,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:58:01,993 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:58:01,994 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:58:01,997 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:58:01,997 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:58:01,998 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:58:01,999 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:58:02,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:58:02,001 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:58:02,002 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:58:02,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:58:02,003 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:58:02,004 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:58:02,004 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:58:02,006 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:58:02,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:58:02,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:58:02,011 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:58:02,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:58:02,041 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:58:02,042 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:58:02,042 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:58:02,042 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:58:02,043 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:58:02,043 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:58:02,043 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:58:02,043 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:58:02,047 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:58:02,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:58:02,048 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:58:02,048 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:58:02,048 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:58:02,048 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:58:02,049 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:58:02,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:58:02,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:58:02,049 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:58:02,049 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:58:02,049 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:58:02,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:58:02,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:58:02,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:58:02,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:58:02,053 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:58:02,054 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:58:02,054 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:58:02,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:58:02,054 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:58:02,054 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:58:02,055 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 -> 8b9f1d4d604db7902b4170bb3ee6b57db84e8a88 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 17:58:02,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:58:02,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:58:02,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:58:02,134 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:58:02,134 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:58:02,135 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873b_true-unreach-call.c [2018-09-21 17:58:02,511 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2eed2721/9cec389ac7d74be88587d99f757c3f13/FLAG5eee3e649 [2018-09-21 17:58:02,739 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:58:02,740 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0873b_true-unreach-call.c [2018-09-21 17:58:02,754 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2eed2721/9cec389ac7d74be88587d99f757c3f13/FLAG5eee3e649 [2018-09-21 17:58:02,769 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2eed2721/9cec389ac7d74be88587d99f757c3f13 [2018-09-21 17:58:02,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:58:02,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:58:02,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:58:02,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:58:02,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:58:02,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:58:02" (1/1) ... [2018-09-21 17:58:02,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3183e931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:02, skipping insertion in model container [2018-09-21 17:58:02,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:58:02" (1/1) ... [2018-09-21 17:58:02,808 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:58:03,306 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:58:03,339 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:58:03,502 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:58:03,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03 WrapperNode [2018-09-21 17:58:03,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:58:03,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:58:03,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:58:03,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:58:03,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... [2018-09-21 17:58:03,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:58:03,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:58:03,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:58:03,749 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:58:03,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:58:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:58:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:58:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-09-21 17:58:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-09-21 17:58:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:58:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:58:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-09-21 17:58:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:58:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:58:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:58:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-09-21 17:58:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:58:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:58:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:58:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:58:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:58:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:58:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-09-21 17:58:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:58:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:58:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-09-21 17:58:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:58:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:58:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:58:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:58:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:58:04,369 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:04,858 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:04,911 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:05,464 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:05,475 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:06,454 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:07,731 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:07,798 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:07,827 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:07,845 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:07,875 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:07,910 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:08,137 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:10,720 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:10,767 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:13,451 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:15,760 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:18,064 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:19,182 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:21,405 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:21,426 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:21,434 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:21,470 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:21,507 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:23,611 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:30,159 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:30,216 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:30,300 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:30,328 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:30,661 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,796 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,845 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:34,204 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:49,788 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:50,798 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:50,809 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:56,512 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:56,527 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:56,571 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:56,672 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:56,684 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:56,697 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:58,765 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:58:58,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:58:58 BoogieIcfgContainer [2018-09-21 17:58:58,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:58:58,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:58:58,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:58:58,771 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:58:58,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:58:02" (1/3) ... [2018-09-21 17:58:58,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f288c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:58:58, skipping insertion in model container [2018-09-21 17:58:58,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:58:03" (2/3) ... [2018-09-21 17:58:58,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f288c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:58:58, skipping insertion in model container [2018-09-21 17:58:58,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:58:58" (3/3) ... [2018-09-21 17:58:58,775 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0873b_true-unreach-call.c [2018-09-21 17:58:58,786 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:58:58,796 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:58:58,840 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:58:58,841 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:58:58,841 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:58:58,841 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:58:58,841 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:58:58,841 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:58:58,841 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:58:58,842 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:58:58,842 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:58:58,875 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states. [2018-09-21 17:58:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 17:58:58,887 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:58,888 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:58:58,891 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:58,897 INFO L82 PathProgramCache]: Analyzing trace with hash 425131288, now seen corresponding path program 1 times [2018-09-21 17:58:58,903 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:58,904 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 17:58:58,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:59,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:58:59,180 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:59,200 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:59,200 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:58:59,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:58:59,219 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:58:59,220 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:58:59,222 INFO L87 Difference]: Start difference. First operand 494 states. Second operand 2 states. [2018-09-21 17:58:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:59,283 INFO L93 Difference]: Finished difference Result 494 states and 574 transitions. [2018-09-21 17:58:59,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:58:59,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 17:58:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:59,307 INFO L225 Difference]: With dead ends: 494 [2018-09-21 17:58:59,307 INFO L226 Difference]: Without dead ends: 490 [2018-09-21 17:58:59,309 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:58:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-09-21 17:58:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2018-09-21 17:58:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:58:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 570 transitions. [2018-09-21 17:58:59,399 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 570 transitions. Word has length 17 [2018-09-21 17:58:59,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:59,400 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 570 transitions. [2018-09-21 17:58:59,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:58:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 570 transitions. [2018-09-21 17:58:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 17:58:59,404 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:59,404 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] [2018-09-21 17:58:59,404 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:59,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1962425380, now seen corresponding path program 1 times [2018-09-21 17:58:59,411 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:59,411 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) [2018-09-21 17:58:59,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 17:58:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:59,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:59,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 17:58:59,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:58:59,958 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:59,988 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:00,069 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:00,070 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:59:00,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 17:59:00,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 17:59:00,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:00,232 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:00,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:00,313 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:59:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:59:00,636 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:00,655 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:00,655 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:59:00,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:59:00,657 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:59:00,660 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:59:00,660 INFO L87 Difference]: Start difference. First operand 490 states and 570 transitions. Second operand 9 states. [2018-09-21 17:59:01,477 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:59:25,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:25,386 INFO L93 Difference]: Finished difference Result 500 states and 582 transitions. [2018-09-21 17:59:25,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:59:25,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-09-21 17:59:25,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:25,396 INFO L225 Difference]: With dead ends: 500 [2018-09-21 17:59:25,396 INFO L226 Difference]: Without dead ends: 498 [2018-09-21 17:59:25,397 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:59:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2018-09-21 17:59:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 490. [2018-09-21 17:59:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:59:25,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 569 transitions. [2018-09-21 17:59:25,432 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 569 transitions. Word has length 43 [2018-09-21 17:59:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:25,436 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 569 transitions. [2018-09-21 17:59:25,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:59:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 569 transitions. [2018-09-21 17:59:25,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 17:59:25,438 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:25,438 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] [2018-09-21 17:59:25,438 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:25,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1609276936, now seen corresponding path program 1 times [2018-09-21 17:59:25,439 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:25,439 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 17:59:25,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:59:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:25,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:25,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:59:25,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:25,756 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:25,756 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:59:25,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:59:25,761 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:59:25,761 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:59:25,761 INFO L87 Difference]: Start difference. First operand 490 states and 569 transitions. Second operand 6 states. [2018-09-21 17:59:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:56,262 INFO L93 Difference]: Finished difference Result 563 states and 650 transitions. [2018-09-21 17:59:56,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 17:59:56,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-21 17:59:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:56,294 INFO L225 Difference]: With dead ends: 563 [2018-09-21 17:59:56,294 INFO L226 Difference]: Without dead ends: 559 [2018-09-21 17:59:56,295 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:59:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2018-09-21 17:59:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 490. [2018-09-21 17:59:56,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:59:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 567 transitions. [2018-09-21 17:59:56,328 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 567 transitions. Word has length 45 [2018-09-21 17:59:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:56,329 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 567 transitions. [2018-09-21 17:59:56,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:59:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 567 transitions. [2018-09-21 17:59:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 17:59:56,331 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:56,332 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] [2018-09-21 17:59:56,332 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:56,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1580647785, now seen corresponding path program 1 times [2018-09-21 17:59:56,334 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:56,335 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 17:59:56,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:59:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:56,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:56,838 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:56,839 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:56,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 17:59:56,862 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:56,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 17:59:56,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:56,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:57,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:57,008 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-09-21 17:59:57,168 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:59:57,454 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:57,456 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:57,458 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-21 17:59:57,475 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:57,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-21 17:59:57,507 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:57,573 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:57,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:57,802 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:58 [2018-09-21 17:59:57,880 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 35 treesize of output 27 [2018-09-21 17:59:57,891 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:57,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-21 17:59:57,898 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:57,930 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:57,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:57,979 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:21 [2018-09-21 17:59:58,235 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:58,244 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:58,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 17:59:58,270 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:58,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 17:59:58,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:58,318 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:58,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:58,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:53, output treesize:45 [2018-09-21 17:59:58,972 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:58,975 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:58,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-21 17:59:59,011 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:59,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-21 17:59:59,048 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:59,103 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:59,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:59,197 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:80, output treesize:72 [2018-09-21 17:59:59,350 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 35 treesize of output 27 [2018-09-21 17:59:59,363 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:59,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-21 17:59:59,370 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:59,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:59,442 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:59,442 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:61, output treesize:35 [2018-09-21 18:00:00,517 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 31 [2018-09-21 18:00:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:00:00,544 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:00:00,560 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:00:00,560 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-21 18:00:00,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-21 18:00:00,561 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-21 18:00:00,561 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:00:00,567 INFO L87 Difference]: Start difference. First operand 490 states and 567 transitions. Second operand 16 states. [2018-09-21 18:00:02,133 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 18:00:03,033 WARN L178 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-21 18:00:04,029 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-21 18:00:04,883 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:00:05,720 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-21 18:00:10,153 WARN L178 SmtUtils]: Spent 4.22 s on a formula simplification that was a NOOP. DAG size: 52 [2018-09-21 18:00:10,930 WARN L178 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-21 18:00:11,619 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 18:00:16,422 WARN L178 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-09-21 18:01:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:01:35,132 INFO L93 Difference]: Finished difference Result 516 states and 596 transitions. [2018-09-21 18:01:35,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-21 18:01:35,133 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2018-09-21 18:01:35,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:01:35,138 INFO L225 Difference]: With dead ends: 516 [2018-09-21 18:01:35,138 INFO L226 Difference]: Without dead ends: 513 [2018-09-21 18:01:35,139 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=183, Invalid=938, Unknown=1, NotChecked=0, Total=1122 [2018-09-21 18:01:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2018-09-21 18:01:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 489. [2018-09-21 18:01:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2018-09-21 18:01:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 565 transitions. [2018-09-21 18:01:35,153 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 565 transitions. Word has length 45 [2018-09-21 18:01:35,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:01:35,153 INFO L480 AbstractCegarLoop]: Abstraction has 489 states and 565 transitions. [2018-09-21 18:01:35,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-21 18:01:35,153 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 565 transitions. [2018-09-21 18:01:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:01:35,156 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:01:35,157 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] [2018-09-21 18:01:35,157 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:01:35,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1131981993, now seen corresponding path program 1 times [2018-09-21 18:01:35,158 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:01:35,158 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:01:35,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:01:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:01:36,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:01:36,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:01:36,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:01:36,450 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:36,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:36,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:36,476 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:01:36,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:01:36,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:01:36,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:36,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:36,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:36,625 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:01:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:01:36,963 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:01:37,000 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:01:37,000 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:01:37,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:01:37,001 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:01:37,001 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:01:37,001 INFO L87 Difference]: Start difference. First operand 489 states and 565 transitions. Second operand 8 states. [2018-09-21 18:01:37,628 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:01:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:01:55,009 INFO L93 Difference]: Finished difference Result 727 states and 844 transitions. [2018-09-21 18:01:55,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:01:55,011 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-09-21 18:01:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:01:55,014 INFO L225 Difference]: With dead ends: 727 [2018-09-21 18:01:55,014 INFO L226 Difference]: Without dead ends: 419 [2018-09-21 18:01:55,014 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:01:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2018-09-21 18:01:55,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2018-09-21 18:01:55,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-09-21 18:01:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 472 transitions. [2018-09-21 18:01:55,027 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 472 transitions. Word has length 49 [2018-09-21 18:01:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:01:55,028 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 472 transitions. [2018-09-21 18:01:55,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:01:55,029 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 472 transitions. [2018-09-21 18:01:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:01:55,030 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:01:55,030 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] [2018-09-21 18:01:55,032 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:01:55,032 INFO L82 PathProgramCache]: Analyzing trace with hash 590234003, now seen corresponding path program 1 times [2018-09-21 18:01:55,033 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:01:55,033 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:01:55,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:01:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:01:56,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:01:56,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:01:56,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:01:56,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:56,144 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:56,161 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:56,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:01:56,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:01:56,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:01:56,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:56,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:56,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:56,234 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:01:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:01:56,671 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:01:56,695 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:01:56,695 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:01:56,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:01:56,696 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:01:56,696 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:01:56,696 INFO L87 Difference]: Start difference. First operand 419 states and 472 transitions. Second operand 9 states. [2018-09-21 18:02:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:02:38,337 INFO L93 Difference]: Finished difference Result 488 states and 565 transitions. [2018-09-21 18:02:38,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:02:38,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 18:02:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:02:38,411 INFO L225 Difference]: With dead ends: 488 [2018-09-21 18:02:38,411 INFO L226 Difference]: Without dead ends: 468 [2018-09-21 18:02:38,412 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:02:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2018-09-21 18:02:38,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 433. [2018-09-21 18:02:38,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2018-09-21 18:02:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 490 transitions. [2018-09-21 18:02:38,428 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 490 transitions. Word has length 50 [2018-09-21 18:02:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:02:38,429 INFO L480 AbstractCegarLoop]: Abstraction has 433 states and 490 transitions. [2018-09-21 18:02:38,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:02:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 490 transitions. [2018-09-21 18:02:38,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:02:38,431 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:02:38,431 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] [2018-09-21 18:02:38,432 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:02:38,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1150866178, now seen corresponding path program 1 times [2018-09-21 18:02:38,432 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:02:38,432 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:02:38,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:02:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:02:38,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:02:38,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:02:38,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:02:38,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:38,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:38,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:38,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:02:38,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:02:38,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:02:38,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:38,826 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:38,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:38,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:02:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:02:39,262 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:02:39,282 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:02:39,282 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:02:39,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:02:39,283 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:02:39,283 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:02:39,283 INFO L87 Difference]: Start difference. First operand 433 states and 490 transitions. Second operand 9 states. [2018-09-21 18:02:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:02:56,781 INFO L93 Difference]: Finished difference Result 711 states and 788 transitions. [2018-09-21 18:02:56,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:02:56,783 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-09-21 18:02:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:02:56,786 INFO L225 Difference]: With dead ends: 711 [2018-09-21 18:02:56,786 INFO L226 Difference]: Without dead ends: 516 [2018-09-21 18:02:56,788 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:02:56,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2018-09-21 18:02:56,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 413. [2018-09-21 18:02:56,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2018-09-21 18:02:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 461 transitions. [2018-09-21 18:02:56,805 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 461 transitions. Word has length 52 [2018-09-21 18:02:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:02:56,805 INFO L480 AbstractCegarLoop]: Abstraction has 413 states and 461 transitions. [2018-09-21 18:02:56,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:02:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 461 transitions. [2018-09-21 18:02:56,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:02:56,814 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:02:56,814 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] [2018-09-21 18:02:56,815 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:02:56,815 INFO L82 PathProgramCache]: Analyzing trace with hash -947575034, now seen corresponding path program 1 times [2018-09-21 18:02:56,818 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:02:56,819 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:02:56,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:02:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:02:57,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:02:57,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:02:57,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:02:57,178 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:57,186 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:57,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:57,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:02:57,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:02:57,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:02:57,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:57,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:57,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:57,284 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:02:57,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:02:57,492 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:02:57,505 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:02:57,505 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:02:57,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:02:57,506 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:02:57,506 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:02:57,506 INFO L87 Difference]: Start difference. First operand 413 states and 461 transitions. Second operand 8 states. [2018-09-21 18:02:58,056 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:03:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:17,491 INFO L93 Difference]: Finished difference Result 547 states and 605 transitions. [2018-09-21 18:03:17,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:03:17,494 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2018-09-21 18:03:17,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:17,497 INFO L225 Difference]: With dead ends: 547 [2018-09-21 18:03:17,497 INFO L226 Difference]: Without dead ends: 536 [2018-09-21 18:03:17,497 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:03:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-21 18:03:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 415. [2018-09-21 18:03:17,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-09-21 18:03:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 461 transitions. [2018-09-21 18:03:17,509 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 461 transitions. Word has length 52 [2018-09-21 18:03:17,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:17,510 INFO L480 AbstractCegarLoop]: Abstraction has 415 states and 461 transitions. [2018-09-21 18:03:17,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:03:17,510 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 461 transitions. [2018-09-21 18:03:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:03:17,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:03:17,513 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] [2018-09-21 18:03:17,514 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:03:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 827432328, now seen corresponding path program 1 times [2018-09-21 18:03:17,515 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:03:17,515 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:03:17,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:03:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:03:17,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:03:17,833 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:03:17,834 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:03:17,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 18:03:17,869 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:03:17,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 18:03:17,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:17,911 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:17,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:17,937 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 18:03:18,125 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:03:18,125 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:03:18,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-21 18:03:18,138 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:03:18,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-21 18:03:18,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:18,201 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:18,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:18,246 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 18:03:18,310 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 35 treesize of output 27 [2018-09-21 18:03:18,318 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:03:18,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-21 18:03:18,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:18,335 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:18,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:18,354 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 18:03:18,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:03:18,741 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:03:18,755 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:03:18,755 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:03:18,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:03:18,756 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:03:18,756 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:03:18,757 INFO L87 Difference]: Start difference. First operand 415 states and 461 transitions. Second operand 11 states. [2018-09-21 18:03:20,721 WARN L178 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 18:03:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:36,182 INFO L93 Difference]: Finished difference Result 516 states and 571 transitions. [2018-09-21 18:03:36,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:03:36,187 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2018-09-21 18:03:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:36,189 INFO L225 Difference]: With dead ends: 516 [2018-09-21 18:03:36,189 INFO L226 Difference]: Without dead ends: 330 [2018-09-21 18:03:36,191 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:03:36,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2018-09-21 18:03:36,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 316. [2018-09-21 18:03:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-09-21 18:03:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 350 transitions. [2018-09-21 18:03:36,201 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 350 transitions. Word has length 52 [2018-09-21 18:03:36,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:36,202 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 350 transitions. [2018-09-21 18:03:36,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:03:36,202 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 350 transitions. [2018-09-21 18:03:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-09-21 18:03:36,203 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:03:36,206 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:03:36,206 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:03:36,207 INFO L82 PathProgramCache]: Analyzing trace with hash -458516899, now seen corresponding path program 1 times [2018-09-21 18:03:36,207 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:03:36,208 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:03:36,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:03:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:03:38,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:03:38,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:03:38,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:03:38,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:38,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:38,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:38,312 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:03:38,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:03:38,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:03:38,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:38,397 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:38,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:38,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:03:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:03:38,904 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:03:38,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:03:38,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:03:38,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:03:38,945 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:03:38,945 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:03:38,947 INFO L87 Difference]: Start difference. First operand 316 states and 350 transitions. Second operand 10 states. [2018-09-21 18:03:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:47,967 INFO L93 Difference]: Finished difference Result 320 states and 354 transitions. [2018-09-21 18:03:47,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:03:47,969 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2018-09-21 18:03:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:47,971 INFO L225 Difference]: With dead ends: 320 [2018-09-21 18:03:47,971 INFO L226 Difference]: Without dead ends: 313 [2018-09-21 18:03:47,972 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:03:47,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-09-21 18:03:47,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2018-09-21 18:03:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-09-21 18:03:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 336 transitions. [2018-09-21 18:03:47,981 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 336 transitions. Word has length 81 [2018-09-21 18:03:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:47,983 INFO L480 AbstractCegarLoop]: Abstraction has 307 states and 336 transitions. [2018-09-21 18:03:47,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:03:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 336 transitions. [2018-09-21 18:03:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-21 18:03:47,986 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:03:47,986 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:03:47,986 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:03:47,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1826014788, now seen corresponding path program 1 times [2018-09-21 18:03:47,989 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:03:47,989 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-09-21 18:03:48,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:03:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:03:52,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:03:52,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:03:52,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:03:52,208 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:52,217 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:52,239 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:52,239 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:03:52,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:03:52,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:03:52,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:52,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:52,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:52,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:03:53,034 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2018-09-21 18:03:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:03:53,216 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:03:53,294 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:03:53,294 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:03:53,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:03:53,295 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:03:53,295 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:03:53,296 INFO L87 Difference]: Start difference. First operand 307 states and 336 transitions. Second operand 10 states. [2018-09-21 18:03:54,096 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:03:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:59,577 INFO L93 Difference]: Finished difference Result 305 states and 335 transitions. [2018-09-21 18:03:59,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:03:59,578 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2018-09-21 18:03:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:59,579 INFO L225 Difference]: With dead ends: 305 [2018-09-21 18:03:59,579 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:03:59,579 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:03:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:03:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:03:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:03:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:03:59,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2018-09-21 18:03:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:59,583 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:03:59,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:03:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:03:59,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:03:59,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:03:59 BoogieIcfgContainer [2018-09-21 18:03:59,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:03:59,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:03:59,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:03:59,592 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:03:59,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:58:58" (3/4) ... [2018-09-21 18:03:59,600 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:03:59,610 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2018-09-21 18:03:59,611 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 18:03:59,611 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:03:59,611 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_double [2018-09-21 18:03:59,611 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_double [2018-09-21 18:03:59,611 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_pow [2018-09-21 18:03:59,612 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:03:59,645 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2018-09-21 18:03:59,647 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-09-21 18:03:59,649 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 18:03:59,651 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:03:59,956 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:03:59,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:03:59,958 INFO L168 Benchmark]: Toolchain (without parser) took 357184.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 951.9 MB in the beginning and 930.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 217.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:59,960 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:03:59,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 919.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:59,961 INFO L168 Benchmark]: Boogie Preprocessor took 173.23 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 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. [2018-09-21 18:03:59,962 INFO L168 Benchmark]: RCFGBuilder took 55017.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 914.3 MB in the beginning and 1.0 GB in the end (delta: -103.0 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:59,963 INFO L168 Benchmark]: TraceAbstraction took 300824.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.0 GB in the beginning and 961.3 MB in the end (delta: 56.0 MB). Peak memory consumption was 101.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:59,963 INFO L168 Benchmark]: Witness Printer took 364.95 ms. Allocated memory is still 1.2 GB. Free memory was 961.3 MB in the beginning and 930.2 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:59,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 796.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 919.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 173.23 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 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 55017.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 914.3 MB in the beginning and 1.0 GB in the end (delta: -103.0 MB). Peak memory consumption was 62.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 300824.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.0 GB in the beginning and 961.3 MB in the end (delta: 56.0 MB). Peak memory consumption was 101.1 MB. Max. memory is 11.5 GB. * Witness Printer took 364.95 ms. Allocated memory is still 1.2 GB. Free memory was 961.3 MB in the beginning and 930.2 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 576]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 494 locations, 1 error locations. SAFE Result, 300.7s OverallTime, 11 OverallIterations, 1 TraceHistogramMax, 279.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5572 SDtfs, 6792 SDslu, 27805 SDs, 0 SdLazy, 4020 SolverSat, 144 SolverUnsat, 50 SolverUnknown, 0 SolverNotchecked, 238.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 682 GetRequests, 521 SyntacticMatches, 4 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 24.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=494occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 380 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 8.7s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 601 ConstructedInterpolants, 302 QuantifiedInterpolants, 456131 SizeOfPredicates, 89 NumberOfNonLiveVariables, 2403 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...