/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0872a_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_0872a_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 d5abf8fd547d87f4a13cf02561a51c2a786fc9e8 --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_0872a_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 d5abf8fd547d87f4a13cf02561a51c2a786fc9e8 --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 17:56:41,926 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:56:41,928 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:56:41,941 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:56:41,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:56:41,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:56:41,944 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:56:41,946 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:56:41,948 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:56:41,949 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:56:41,950 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:56:41,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:56:41,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:56:41,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:56:41,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:56:41,955 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:56:41,956 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:56:41,958 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:56:41,960 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:56:41,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:56:41,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:56:41,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:56:41,967 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:56:41,967 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:56:41,967 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:56:41,968 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:56:41,970 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:56:41,970 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:56:41,971 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:56:41,972 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:56:41,973 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:56:41,973 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:56:41,974 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:56:41,974 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:56:41,975 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:56:41,976 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:56:41,976 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:56:42,006 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:56:42,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:56:42,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:56:42,008 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:56:42,008 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:56:42,009 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:56:42,010 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:56:42,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:56:42,010 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:56:42,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:56:42,010 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:56:42,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:56:42,011 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:56:42,011 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:56:42,011 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:56:42,011 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:56:42,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:56:42,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:56:42,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:56:42,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:56:42,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:56:42,015 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:56:42,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:56:42,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:56:42,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:56:42,015 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:56:42,015 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:56:42,016 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:56:42,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:56:42,016 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 -> d5abf8fd547d87f4a13cf02561a51c2a786fc9e8 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 17:56:42,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:56:42,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:56:42,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:56:42,125 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:56:42,126 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:56:42,127 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0872a_true-unreach-call.c [2018-09-21 17:56:42,533 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0623393/07ae446521a1449b8c5cb9269db2863c/FLAG40fba396c [2018-09-21 17:56:42,765 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:56:42,766 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0872a_true-unreach-call.c [2018-09-21 17:56:42,779 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0623393/07ae446521a1449b8c5cb9269db2863c/FLAG40fba396c [2018-09-21 17:56:42,796 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0623393/07ae446521a1449b8c5cb9269db2863c [2018-09-21 17:56:42,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:56:42,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:56:42,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:56:42,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:56:42,814 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:56:42,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:56:42" (1/1) ... [2018-09-21 17:56:42,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2576490b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:42, skipping insertion in model container [2018-09-21 17:56:42,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:56:42" (1/1) ... [2018-09-21 17:56:42,831 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:56:43,178 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 17:56:43,194 INFO L168 Benchmark]: Toolchain (without parser) took 392.49 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:56:43,198 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:56:43,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.16 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:56:43,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.16 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 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 17:56:45,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:56:45,455 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:56:45,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:56:45,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:56:45,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:56:45,473 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:56:45,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:56:45,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:56:45,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:56:45,479 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:56:45,479 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:56:45,480 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:56:45,481 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:56:45,483 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:56:45,484 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:56:45,485 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:56:45,487 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:56:45,489 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:56:45,491 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:56:45,493 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:56:45,494 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:56:45,497 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:56:45,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:56:45,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:56:45,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:56:45,501 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:56:45,502 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:56:45,503 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:56:45,504 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:56:45,504 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:56:45,505 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:56:45,505 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:56:45,506 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:56:45,507 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:56:45,508 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:56:45,508 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:56:45,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:56:45,537 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:56:45,538 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:56:45,538 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:56:45,540 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:56:45,541 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:56:45,541 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:56:45,541 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:56:45,541 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:56:45,541 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:56:45,542 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:56:45,542 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:56:45,542 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:56:45,542 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:56:45,542 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:56:45,542 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:56:45,543 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:56:45,543 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:56:45,543 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:56:45,543 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:56:45,545 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:56:45,545 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:56:45,545 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:56:45,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:56:45,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:56:45,546 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:56:45,546 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:56:45,548 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:56:45,548 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:56:45,548 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:56:45,549 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:56:45,549 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 -> d5abf8fd547d87f4a13cf02561a51c2a786fc9e8 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 17:56:45,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:56:45,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:56:45,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:56:45,642 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:56:45,643 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:56:45,644 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0872a_true-unreach-call.c [2018-09-21 17:56:46,009 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921a62a38/30bc5ed8def940178c25aea66216cba9/FLAG5507e639a [2018-09-21 17:56:46,283 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:56:46,284 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0872a_true-unreach-call.c [2018-09-21 17:56:46,297 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921a62a38/30bc5ed8def940178c25aea66216cba9/FLAG5507e639a [2018-09-21 17:56:46,312 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921a62a38/30bc5ed8def940178c25aea66216cba9 [2018-09-21 17:56:46,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:56:46,319 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:56:46,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:56:46,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:56:46,328 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:56:46,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:46,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f56ae6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46, skipping insertion in model container [2018-09-21 17:56:46,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:46,345 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:56:46,781 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:56:46,805 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:56:46,934 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:56:46,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46 WrapperNode [2018-09-21 17:56:46,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:56:46,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:56:46,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:56:46,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:56:47,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (1/1) ... [2018-09-21 17:56:47,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:56:47,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:56:47,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:56:47,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:56:47,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (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 17:56:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:56:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:56:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-09-21 17:56:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-09-21 17:56:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:56:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:56:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-09-21 17:56:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:56:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:56:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:56:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-09-21 17:56:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:56:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:56:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:56:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:56:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:56:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:56:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-09-21 17:56:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:56:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:56:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-09-21 17:56:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:56:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:56:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:56:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:56:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:56:47,853 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:48,478 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:48,505 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,104 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,125 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:50,142 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,390 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,559 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,595 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,635 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,646 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,672 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,919 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:54,446 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:54,542 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:57,205 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:59,457 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:01,775 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:02,784 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:05,046 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:05,081 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:05,126 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:05,170 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:05,183 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:06,609 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:13,172 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:13,183 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:13,231 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:13,312 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:13,729 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:16,715 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:16,756 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:16,855 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:30,223 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:31,089 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:31,129 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:33,914 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:33,965 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:34,046 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:34,226 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:34,266 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:34,317 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:36,447 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:57:36,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:57:36 BoogieIcfgContainer [2018-09-21 17:57:36,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:57:36,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:57:36,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:57:36,454 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:57:36,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:56:46" (1/3) ... [2018-09-21 17:57:36,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef9fe0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:57:36, skipping insertion in model container [2018-09-21 17:57:36,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:56:46" (2/3) ... [2018-09-21 17:57:36,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef9fe0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:57:36, skipping insertion in model container [2018-09-21 17:57:36,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:57:36" (3/3) ... [2018-09-21 17:57:36,459 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0872a_true-unreach-call.c [2018-09-21 17:57:36,468 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:57:36,476 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:57:36,522 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:57:36,523 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:57:36,523 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:57:36,523 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:57:36,523 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:57:36,524 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:57:36,524 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:57:36,524 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:57:36,524 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:57:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states. [2018-09-21 17:57:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 17:57:36,570 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:36,571 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 17:57:36,573 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:36,579 INFO L82 PathProgramCache]: Analyzing trace with hash 425131288, now seen corresponding path program 1 times [2018-09-21 17:57:36,585 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:36,586 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 17:57:36,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:57:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:36,815 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:36,834 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 17:57:36,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:57:36,851 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:57:36,851 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:57:36,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:57:36,869 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:57:36,870 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:57:36,873 INFO L87 Difference]: Start difference. First operand 494 states. Second operand 2 states. [2018-09-21 17:57:36,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:36,931 INFO L93 Difference]: Finished difference Result 494 states and 574 transitions. [2018-09-21 17:57:36,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:57:36,933 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 17:57:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:36,954 INFO L225 Difference]: With dead ends: 494 [2018-09-21 17:57:36,955 INFO L226 Difference]: Without dead ends: 490 [2018-09-21 17:57:36,957 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 17:57:36,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-09-21 17:57:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2018-09-21 17:57:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:57:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 570 transitions. [2018-09-21 17:57:37,050 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 570 transitions. Word has length 17 [2018-09-21 17:57:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:37,051 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 570 transitions. [2018-09-21 17:57:37,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:57:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 570 transitions. [2018-09-21 17:57:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 17:57:37,053 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:37,053 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:57:37,054 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:37,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1962425380, now seen corresponding path program 1 times [2018-09-21 17:57:37,056 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:37,057 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 17:57:37,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:57:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:37,319 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:37,575 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 17:57:37,575 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:57:37,593 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:57:37,593 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:57:37,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:57:37,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:57:37,596 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:57:37,597 INFO L87 Difference]: Start difference. First operand 490 states and 570 transitions. Second operand 6 states. [2018-09-21 17:58:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:14,459 INFO L93 Difference]: Finished difference Result 567 states and 658 transitions. [2018-09-21 17:58:14,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 17:58:14,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-21 17:58:14,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:14,564 INFO L225 Difference]: With dead ends: 567 [2018-09-21 17:58:14,565 INFO L226 Difference]: Without dead ends: 563 [2018-09-21 17:58:14,566 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:58:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2018-09-21 17:58:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 490. [2018-09-21 17:58:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:58:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 567 transitions. [2018-09-21 17:58:14,606 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 567 transitions. Word has length 43 [2018-09-21 17:58:14,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:14,606 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 567 transitions. [2018-09-21 17:58:14,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:58:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 567 transitions. [2018-09-21 17:58:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 17:58:14,608 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:14,608 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 17:58:14,609 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:14,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1580647785, now seen corresponding path program 1 times [2018-09-21 17:58:14,610 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:14,610 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 17:58:14,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:14,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:14,997 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:58:14,998 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:58:15,006 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 17:58:15,017 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:58:15,041 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 17:58:15,044 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:15,068 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:15,097 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 17:58:15,097 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 17:58:15,313 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:58:15,314 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:58:15,316 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 17:58:15,329 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:58:15,352 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 17:58:15,353 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:15,389 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:15,473 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 17:58:15,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 17:58:15,653 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 17:58:15,694 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:58:15,721 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 17:58:15,722 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:15,826 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:15,927 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 17:58:15,928 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 17:58:16,521 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 17:58:16,521 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:16,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:16,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 17:58:16,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 17:58:16,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 17:58:16,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:58:16,540 INFO L87 Difference]: Start difference. First operand 490 states and 567 transitions. Second operand 11 states. [2018-09-21 17:58:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:36,310 INFO L93 Difference]: Finished difference Result 496 states and 575 transitions. [2018-09-21 17:58:36,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 17:58:36,312 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-09-21 17:58:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:36,314 INFO L225 Difference]: With dead ends: 496 [2018-09-21 17:58:36,314 INFO L226 Difference]: Without dead ends: 404 [2018-09-21 17:58:36,315 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 17:58:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-09-21 17:58:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2018-09-21 17:58:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2018-09-21 17:58:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 442 transitions. [2018-09-21 17:58:36,326 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 442 transitions. Word has length 45 [2018-09-21 17:58:36,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:36,327 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 442 transitions. [2018-09-21 17:58:36,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 17:58:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 442 transitions. [2018-09-21 17:58:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-09-21 17:58:36,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:36,330 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] [2018-09-21 17:58:36,330 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:36,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2105643434, now seen corresponding path program 1 times [2018-09-21 17:58:36,331 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:36,331 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 17:58:36,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:37,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:37,395 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 17:58:37,408 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 17:58:37,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:37,435 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:37,512 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 17:58:37,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:58:37,551 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 17:58:37,556 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 17:58:37,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:37,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:37,572 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 17:58:37,572 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:58:37,744 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 17:58:37,744 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:37,773 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:37,774 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 17:58:37,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 17:58:37,775 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 17:58:37,775 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:58:37,775 INFO L87 Difference]: Start difference. First operand 404 states and 442 transitions. Second operand 8 states. [2018-09-21 17:58:46,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:46,158 INFO L93 Difference]: Finished difference Result 406 states and 443 transitions. [2018-09-21 17:58:46,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 17:58:46,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2018-09-21 17:58:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:46,165 INFO L225 Difference]: With dead ends: 406 [2018-09-21 17:58:46,165 INFO L226 Difference]: Without dead ends: 399 [2018-09-21 17:58:46,166 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-09-21 17:58:46,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-09-21 17:58:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2018-09-21 17:58:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2018-09-21 17:58:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 433 transitions. [2018-09-21 17:58:46,186 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 433 transitions. Word has length 79 [2018-09-21 17:58:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:46,187 INFO L480 AbstractCegarLoop]: Abstraction has 399 states and 433 transitions. [2018-09-21 17:58:46,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 17:58:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 433 transitions. [2018-09-21 17:58:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-21 17:58:46,194 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:46,194 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] [2018-09-21 17:58:46,195 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:46,195 INFO L82 PathProgramCache]: Analyzing trace with hash -75389568, now seen corresponding path program 1 times [2018-09-21 17:58:46,200 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:46,200 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 17:58:46,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:50,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:50,082 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 17:58:50,089 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 17:58:50,090 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:50,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:50,112 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 17:58:50,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:58:50,167 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 17:58:50,182 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 17:58:50,182 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:50,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:50,211 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 17:58:50,212 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:58:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:58:50,559 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:50,630 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:50,631 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:58:50,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:58:50,631 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:58:50,632 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:58:50,632 INFO L87 Difference]: Start difference. First operand 399 states and 433 transitions. Second operand 9 states. [2018-09-21 17:58:57,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:57,437 INFO L93 Difference]: Finished difference Result 506 states and 553 transitions. [2018-09-21 17:58:57,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 17:58:57,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 125 [2018-09-21 17:58:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:57,442 INFO L225 Difference]: With dead ends: 506 [2018-09-21 17:58:57,443 INFO L226 Difference]: Without dead ends: 381 [2018-09-21 17:58:57,443 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:58:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-09-21 17:58:57,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2018-09-21 17:58:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-09-21 17:58:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 412 transitions. [2018-09-21 17:58:57,459 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 412 transitions. Word has length 125 [2018-09-21 17:58:57,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:57,459 INFO L480 AbstractCegarLoop]: Abstraction has 381 states and 412 transitions. [2018-09-21 17:58:57,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:58:57,460 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 412 transitions. [2018-09-21 17:58:57,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-21 17:58:57,463 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:57,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:58:57,464 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:57,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1528026949, now seen corresponding path program 1 times [2018-09-21 17:58:57,466 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:57,467 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 17:58:57,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 17:59:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:08,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:08,386 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 17:59:08,386 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:08,532 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:08,532 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 17:59:08,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 17:59:08,533 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 17:59:08,533 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 17:59:08,533 INFO L87 Difference]: Start difference. First operand 381 states and 412 transitions. Second operand 3 states. [2018-09-21 17:59:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:08,680 INFO L93 Difference]: Finished difference Result 581 states and 629 transitions. [2018-09-21 17:59:08,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 17:59:08,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2018-09-21 17:59:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:08,687 INFO L225 Difference]: With dead ends: 581 [2018-09-21 17:59:08,688 INFO L226 Difference]: Without dead ends: 581 [2018-09-21 17:59:08,688 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 17:59:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2018-09-21 17:59:08,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 487. [2018-09-21 17:59:08,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2018-09-21 17:59:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 525 transitions. [2018-09-21 17:59:08,710 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 525 transitions. Word has length 190 [2018-09-21 17:59:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:08,713 INFO L480 AbstractCegarLoop]: Abstraction has 487 states and 525 transitions. [2018-09-21 17:59:08,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 17:59:08,713 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 525 transitions. [2018-09-21 17:59:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-21 17:59:08,717 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:08,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:59:08,718 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:08,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1133660163, now seen corresponding path program 1 times [2018-09-21 17:59:08,720 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:08,720 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 17:59:08,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:59:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:29,588 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:29,635 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:29,635 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:29,637 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 17:59:29,648 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:29,667 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 17:59:29,668 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:29,688 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:29,712 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 17:59:29,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 17:59:29,898 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:29,911 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:29,914 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 17:59:29,958 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:29,992 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 17:59:29,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:30,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:30,074 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 17:59:30,075 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 17:59:30,134 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 17:59:30,143 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:30,148 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 17:59:30,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:30,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:30,178 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 17:59:30,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 17:59:30,669 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 17:59:30,669 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:30,843 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:30,843 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 17:59:30,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 17:59:30,844 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 17:59:30,844 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:59:30,844 INFO L87 Difference]: Start difference. First operand 487 states and 525 transitions. Second operand 11 states. [2018-09-21 17:59:38,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:38,682 INFO L93 Difference]: Finished difference Result 483 states and 521 transitions. [2018-09-21 17:59:38,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 17:59:38,685 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 190 [2018-09-21 17:59:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:38,686 INFO L225 Difference]: With dead ends: 483 [2018-09-21 17:59:38,686 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:59:38,687 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 17:59:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:59:38,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:59:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:59:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:59:38,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-09-21 17:59:38,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:38,693 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:59:38,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 17:59:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:59:38,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:59:38,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:59:38 BoogieIcfgContainer [2018-09-21 17:59:38,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:59:38,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:59:38,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:59:38,705 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:59:38,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:57:36" (3/4) ... [2018-09-21 17:59:38,711 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:59:38,722 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2018-09-21 17:59:38,722 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 17:59:38,722 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:59:38,722 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_double [2018-09-21 17:59:38,722 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_double [2018-09-21 17:59:38,724 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_pow [2018-09-21 17:59:38,725 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:59:38,765 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2018-09-21 17:59:38,769 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-09-21 17:59:38,771 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 17:59:38,773 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 17:59:39,038 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:59:39,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:59:39,040 INFO L168 Benchmark]: Toolchain (without parser) took 172723.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 287.3 MB). Free memory was 953.2 MB in the beginning and 921.7 MB in the end (delta: 31.5 MB). Peak memory consumption was 318.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:59:39,042 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:59:39,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.89 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 921.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-21 17:59:39,043 INFO L168 Benchmark]: Boogie Preprocessor took 247.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 921.0 MB in the beginning and 1.1 GB in the end (delta: -215.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:59:39,044 INFO L168 Benchmark]: RCFGBuilder took 49206.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 129.2 MB). Peak memory consumption was 129.2 MB. Max. memory is 11.5 GB. [2018-09-21 17:59:39,045 INFO L168 Benchmark]: TraceAbstraction took 122254.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 133.2 MB). Free memory was 1.0 GB in the beginning and 956.7 MB in the end (delta: 51.0 MB). Peak memory consumption was 184.2 MB. Max. memory is 11.5 GB. [2018-09-21 17:59:39,045 INFO L168 Benchmark]: Witness Printer took 334.31 ms. Allocated memory is still 1.3 GB. Free memory was 956.7 MB in the beginning and 921.7 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-09-21 17:59:39,049 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 672.89 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 921.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 247.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 921.0 MB in the beginning and 1.1 GB in the end (delta: -215.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 49206.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 129.2 MB). Peak memory consumption was 129.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 122254.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 133.2 MB). Free memory was 1.0 GB in the beginning and 956.7 MB in the end (delta: 51.0 MB). Peak memory consumption was 184.2 MB. Max. memory is 11.5 GB. * Witness Printer took 334.31 ms. Allocated memory is still 1.3 GB. Free memory was 956.7 MB in the beginning and 921.7 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 575]: 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, 122.1s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 80.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3292 SDtfs, 2831 SDslu, 11437 SDs, 0 SdLazy, 1146 SolverSat, 47 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 69.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 716 GetRequests, 643 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 5.6s 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 167 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 34.0s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 689 NumberOfCodeBlocks, 689 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 682 ConstructedInterpolants, 249 QuantifiedInterpolants, 864412 SizeOfPredicates, 39 NumberOfNonLiveVariables, 2026 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...