/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873a_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_0873a_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 01b99343bbfb4ebb1b4659c391835d27a39fffe9 --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_0873a_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 01b99343bbfb4ebb1b4659c391835d27a39fffe9 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:57:34,081 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:57:34,083 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:57:34,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:57:34,096 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:57:34,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:57:34,099 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:57:34,101 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:57:34,103 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:57:34,104 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:57:34,105 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:57:34,105 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:57:34,106 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:57:34,108 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:57:34,109 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:57:34,110 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:57:34,111 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:57:34,113 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:57:34,115 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:57:34,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:57:34,118 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:57:34,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:57:34,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:57:34,123 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:57:34,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:57:34,125 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:57:34,126 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:57:34,127 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:57:34,128 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:57:34,130 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:57:34,130 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:57:34,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:57:34,131 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:57:34,132 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:57:34,133 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:57:34,134 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:57:34,134 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:57:34,164 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:57:34,165 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:57:34,170 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:57:34,170 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:57:34,171 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:57:34,171 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:57:34,171 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:57:34,172 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:57:34,172 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:57:34,172 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:57:34,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:57:34,173 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:57:34,173 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:57:34,173 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:57:34,173 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:57:34,173 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:57:34,173 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:57:34,174 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:57:34,174 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:57:34,174 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:57:34,174 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:57:34,177 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:57:34,177 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:57:34,178 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:57:34,178 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:57:34,178 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:57:34,178 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:57:34,178 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:57:34,178 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:57:34,179 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 -> 01b99343bbfb4ebb1b4659c391835d27a39fffe9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 17:57:34,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:57:34,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:57:34,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:57:34,264 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:57:34,264 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:57:34,265 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873a_true-unreach-call.c [2018-09-21 17:57:34,620 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ef4be3f/7b9397f91bea4933a53a53e8d6bfbd5b/FLAGa593c7da3 [2018-09-21 17:57:34,891 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:57:34,893 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0873a_true-unreach-call.c [2018-09-21 17:57:34,912 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ef4be3f/7b9397f91bea4933a53a53e8d6bfbd5b/FLAGa593c7da3 [2018-09-21 17:57:34,932 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ef4be3f/7b9397f91bea4933a53a53e8d6bfbd5b [2018-09-21 17:57:34,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:57:34,939 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:57:34,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:57:34,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:57:34,948 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:57:34,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:57:34" (1/1) ... [2018-09-21 17:57:34,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9608cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:34, skipping insertion in model container [2018-09-21 17:57:34,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:57:34" (1/1) ... [2018-09-21 17:57:34,964 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:57:35,281 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$37(StandardFunctionHandler.java:260) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-21 17:57:35,285 INFO L168 Benchmark]: Toolchain (without parser) took 348.39 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:35,288 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:57:35,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.53 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:35,292 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 343.53 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:57:37,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:57:37,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:57:37,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:57:37,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:57:37,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:57:37,478 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:57:37,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:57:37,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:57:37,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:57:37,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:57:37,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:57:37,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:57:37,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:57:37,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:57:37,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:57:37,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:57:37,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:57:37,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:57:37,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:57:37,497 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:57:37,498 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:57:37,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:57:37,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:57:37,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:57:37,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:57:37,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:57:37,505 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:57:37,506 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:57:37,507 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:57:37,507 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:57:37,508 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:57:37,508 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:57:37,509 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:57:37,510 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:57:37,511 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:57:37,511 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:57:37,527 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:57:37,529 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:57:37,530 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:57:37,531 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:57:37,531 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:57:37,531 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:57:37,535 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:57:37,535 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:57:37,535 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:57:37,535 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:57:37,535 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:57:37,535 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:57:37,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:57:37,536 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:57:37,536 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:57:37,536 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:57:37,536 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:57:37,539 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:57:37,539 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:57:37,540 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:57:37,540 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:57:37,540 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:57:37,540 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:57:37,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:57:37,540 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:57:37,541 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:57:37,541 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:57:37,541 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:57:37,541 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:57:37,543 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:57:37,544 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:57:37,544 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 -> 01b99343bbfb4ebb1b4659c391835d27a39fffe9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 17:57:37,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:57:37,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:57:37,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:57:37,642 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:57:37,643 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:57:37,644 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0873a_true-unreach-call.c [2018-09-21 17:57:37,998 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1581a9d6/d232029402af4c68afbd7ae482febd89/FLAG070079271 [2018-09-21 17:57:38,220 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:57:38,220 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0873a_true-unreach-call.c [2018-09-21 17:57:38,232 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1581a9d6/d232029402af4c68afbd7ae482febd89/FLAG070079271 [2018-09-21 17:57:38,249 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1581a9d6/d232029402af4c68afbd7ae482febd89 [2018-09-21 17:57:38,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:57:38,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:57:38,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:57:38,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:57:38,264 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:57:38,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:57:38" (1/1) ... [2018-09-21 17:57:38,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4002db30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:38, skipping insertion in model container [2018-09-21 17:57:38,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:57:38" (1/1) ... [2018-09-21 17:57:38,282 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:57:38,773 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:57:38,813 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:57:39,017 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:57:39,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39 WrapperNode [2018-09-21 17:57:39,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:57:39,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:57:39,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:57:39,073 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:57:39,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (1/1) ... [2018-09-21 17:57:39,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:57:39,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:57:39,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:57:39,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:57:39,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (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 17:57:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:57:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:57:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-09-21 17:57:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-09-21 17:57:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:57:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:57:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-09-21 17:57:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:57:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:57:39,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:57:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-09-21 17:57:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:57:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:57:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:57:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:57:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:57:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:57:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-09-21 17:57:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:57:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:57:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-09-21 17:57:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:57:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:57:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:57:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:57:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:57:39,878 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:40,402 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:40,418 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:40,935 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:40,954 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:41,779 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:42,957 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:43,036 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:43,087 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:43,164 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:43,203 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:43,247 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:43,363 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:45,825 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:45,860 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:48,557 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:50,788 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:53,177 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:55,319 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:57,533 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:57,544 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:57,552 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:57,575 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:57,606 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:57:59,731 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:08,088 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:08,134 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:08,215 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:08,292 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:08,815 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:11,889 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:11,921 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:11,979 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:27,899 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:28,840 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:28,850 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,278 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,335 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,414 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,564 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,576 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:33,587 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:58:35,665 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:58:35,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:58:35 BoogieIcfgContainer [2018-09-21 17:58:35,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:58:35,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:58:35,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:58:35,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:58:35,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:57:38" (1/3) ... [2018-09-21 17:58:35,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458bf88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:58:35, skipping insertion in model container [2018-09-21 17:58:35,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:57:39" (2/3) ... [2018-09-21 17:58:35,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458bf88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:58:35, skipping insertion in model container [2018-09-21 17:58:35,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:58:35" (3/3) ... [2018-09-21 17:58:35,676 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0873a_true-unreach-call.c [2018-09-21 17:58:35,687 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:58:35,696 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:58:35,746 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:58:35,747 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:58:35,748 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:58:35,748 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:58:35,748 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:58:35,748 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:58:35,748 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:58:35,749 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:58:35,749 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:58:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states. [2018-09-21 17:58:35,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 17:58:35,819 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:35,820 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:58:35,823 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:35,830 INFO L82 PathProgramCache]: Analyzing trace with hash 425131288, now seen corresponding path program 1 times [2018-09-21 17:58:35,835 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:35,836 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 17:58:35,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:36,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:36,139 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 17:58:36,140 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:36,156 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:36,157 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:58:36,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:58:36,173 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:58:36,174 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:58:36,176 INFO L87 Difference]: Start difference. First operand 494 states. Second operand 2 states. [2018-09-21 17:58:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:36,234 INFO L93 Difference]: Finished difference Result 494 states and 574 transitions. [2018-09-21 17:58:36,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:58:36,235 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 17:58:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:36,256 INFO L225 Difference]: With dead ends: 494 [2018-09-21 17:58:36,257 INFO L226 Difference]: Without dead ends: 490 [2018-09-21 17:58:36,259 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:58:36,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-09-21 17:58:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2018-09-21 17:58:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:58:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 570 transitions. [2018-09-21 17:58:36,357 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 570 transitions. Word has length 17 [2018-09-21 17:58:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:36,357 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 570 transitions. [2018-09-21 17:58:36,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:58:36,358 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 570 transitions. [2018-09-21 17:58:36,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 17:58:36,360 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:36,360 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:58:36,361 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:36,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1962425380, now seen corresponding path program 1 times [2018-09-21 17:58:36,363 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:36,363 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 17:58:36,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:36,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:36,719 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 17:58:36,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 17:58:36,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:36,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:36,769 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 17:58:36,769 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:58:36,903 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 17:58:36,927 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 17:58:36,928 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:36,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:36,987 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 17:58:36,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:58:37,414 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 17:58:37,415 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:37,435 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:37,435 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:58:37,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:58:37,439 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:58:37,439 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:58:37,439 INFO L87 Difference]: Start difference. First operand 490 states and 570 transitions. Second operand 9 states. [2018-09-21 17:58:38,411 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 17:58:38,997 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 17:58:39,219 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:58:39,447 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:59:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:04,787 INFO L93 Difference]: Finished difference Result 498 states and 580 transitions. [2018-09-21 17:59:04,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:59:04,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-09-21 17:59:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:04,795 INFO L225 Difference]: With dead ends: 498 [2018-09-21 17:59:04,796 INFO L226 Difference]: Without dead ends: 496 [2018-09-21 17:59:04,797 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:59:04,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2018-09-21 17:59:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2018-09-21 17:59:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:59:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 569 transitions. [2018-09-21 17:59:04,825 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 569 transitions. Word has length 43 [2018-09-21 17:59:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:04,826 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 569 transitions. [2018-09-21 17:59:04,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:59:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 569 transitions. [2018-09-21 17:59:04,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 17:59:04,828 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:04,828 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:59:04,828 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:04,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1609276936, now seen corresponding path program 1 times [2018-09-21 17:59:04,830 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:04,830 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 17:59:04,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:59:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:05,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:05,152 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 17:59:05,153 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:05,173 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:05,174 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:59:05,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:59:05,174 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:59:05,174 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:59:05,175 INFO L87 Difference]: Start difference. First operand 490 states and 569 transitions. Second operand 6 states. [2018-09-21 17:59:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:34,383 INFO L93 Difference]: Finished difference Result 567 states and 657 transitions. [2018-09-21 17:59:34,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 17:59:34,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-21 17:59:34,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:34,389 INFO L225 Difference]: With dead ends: 567 [2018-09-21 17:59:34,389 INFO L226 Difference]: Without dead ends: 563 [2018-09-21 17:59:34,389 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:59:34,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2018-09-21 17:59:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 490. [2018-09-21 17:59:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-09-21 17:59:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 567 transitions. [2018-09-21 17:59:34,412 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 567 transitions. Word has length 45 [2018-09-21 17:59:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:34,413 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 567 transitions. [2018-09-21 17:59:34,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:59:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 567 transitions. [2018-09-21 17:59:34,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 17:59:34,416 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:34,416 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:59:34,416 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:34,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1580647785, now seen corresponding path program 1 times [2018-09-21 17:59:34,418 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:34,418 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 17:59:34,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:59:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:34,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:34,993 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:34,994 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:34,994 INFO L303 Elim1Store]: Index analysis took 161 ms [2018-09-21 17:59:34,995 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 17:59:35,017 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:35,039 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 17:59:35,039 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:35,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:35,275 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 17:59:35,275 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-09-21 17:59:35,477 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:59:35,631 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 17:59:35,827 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:35,828 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:35,829 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 17:59:35,859 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:35,883 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 17:59:35,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:36,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:36,470 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 17:59:36,471 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:58 [2018-09-21 17:59:36,565 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 17:59:36,589 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:36,596 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 17:59:36,597 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:36,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:36,783 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 17:59:36,783 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:21 [2018-09-21 17:59:37,169 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-21 17:59:37,219 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:37,233 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:37,235 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 17:59:37,276 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:37,308 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 17:59:37,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:37,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:37,426 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 17:59:37,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:53, output treesize:45 [2018-09-21 17:59:37,967 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:37,971 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:37,972 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 17:59:37,997 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:38,024 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 17:59:38,024 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:38,080 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:38,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:38,173 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:80, output treesize:72 [2018-09-21 17:59:38,319 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 17:59:38,329 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:38,336 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 17:59:38,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:38,357 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:38,401 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:59:38,401 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:61, output treesize:35 [2018-09-21 17:59:39,488 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 17:59:39,488 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:39,507 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:39,507 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-21 17:59:39,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-21 17:59:39,508 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-21 17:59:39,508 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:59:39,510 INFO L87 Difference]: Start difference. First operand 490 states and 567 transitions. Second operand 16 states. [2018-09-21 17:59:40,709 WARN L178 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 17:59:41,349 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 17:59:41,726 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-21 17:59:42,248 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 17:59:42,975 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-21 17:59:44,281 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-21 17:59:44,635 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 17:59:45,144 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-21 17:59:45,500 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-21 17:59:45,957 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-09-21 17:59:46,605 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-21 17:59:47,398 WARN L178 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-21 17:59:50,418 WARN L178 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-09-21 18:01:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:01:10,463 INFO L93 Difference]: Finished difference Result 595 states and 685 transitions. [2018-09-21 18:01:10,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-21 18:01:10,466 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2018-09-21 18:01:10,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:01:10,470 INFO L225 Difference]: With dead ends: 595 [2018-09-21 18:01:10,470 INFO L226 Difference]: Without dead ends: 592 [2018-09-21 18:01:10,472 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=183, Invalid=938, Unknown=1, NotChecked=0, Total=1122 [2018-09-21 18:01:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-09-21 18:01:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 489. [2018-09-21 18:01:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2018-09-21 18:01:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 565 transitions. [2018-09-21 18:01:10,491 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 565 transitions. Word has length 45 [2018-09-21 18:01:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:01:10,492 INFO L480 AbstractCegarLoop]: Abstraction has 489 states and 565 transitions. [2018-09-21 18:01:10,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-21 18:01:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 565 transitions. [2018-09-21 18:01:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:01:10,495 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:01:10,495 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:01:10,495 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:01:10,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1131981993, now seen corresponding path program 1 times [2018-09-21 18:01:10,497 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:01:10,497 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:01:10,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:01:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:01:11,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:01:11,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:01:11,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:01:11,609 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:11,644 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:11,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:11,695 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:01:11,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:01:11,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:01:11,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:11,814 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:11,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:11,888 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:01:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:01:12,152 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:01:12,171 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:01:12,171 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:01:12,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:01:12,172 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:01:12,172 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:01:12,172 INFO L87 Difference]: Start difference. First operand 489 states and 565 transitions. Second operand 8 states. [2018-09-21 18:01:12,811 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:01:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:01:32,344 INFO L93 Difference]: Finished difference Result 727 states and 844 transitions. [2018-09-21 18:01:32,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:01:32,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-09-21 18:01:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:01:32,354 INFO L225 Difference]: With dead ends: 727 [2018-09-21 18:01:32,354 INFO L226 Difference]: Without dead ends: 419 [2018-09-21 18:01:32,354 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:01:32,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2018-09-21 18:01:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2018-09-21 18:01:32,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-09-21 18:01:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 472 transitions. [2018-09-21 18:01:32,368 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 472 transitions. Word has length 49 [2018-09-21 18:01:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:01:32,368 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 472 transitions. [2018-09-21 18:01:32,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:01:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 472 transitions. [2018-09-21 18:01:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:01:32,371 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:01:32,371 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:01:32,371 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:01:32,372 INFO L82 PathProgramCache]: Analyzing trace with hash 590234003, now seen corresponding path program 1 times [2018-09-21 18:01:32,372 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:01:32,373 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:01:32,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:01:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:01:33,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:01:33,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:01:33,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:01:33,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:33,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:33,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:33,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:01:33,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:01:33,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:01:33,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:01:33,598 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:01:33,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:01:33,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:01:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:01:34,061 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:01:34,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:01:34,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:01:34,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:01:34,084 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:01:34,084 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:01:34,085 INFO L87 Difference]: Start difference. First operand 419 states and 472 transitions. Second operand 9 states. [2018-09-21 18:01:34,784 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:02:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:02:06,864 INFO L93 Difference]: Finished difference Result 491 states and 567 transitions. [2018-09-21 18:02:06,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:02:06,907 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 18:02:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:02:06,909 INFO L225 Difference]: With dead ends: 491 [2018-09-21 18:02:06,909 INFO L226 Difference]: Without dead ends: 469 [2018-09-21 18:02:06,909 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:02:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2018-09-21 18:02:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 433. [2018-09-21 18:02:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2018-09-21 18:02:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 491 transitions. [2018-09-21 18:02:06,922 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 491 transitions. Word has length 50 [2018-09-21 18:02:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:02:06,923 INFO L480 AbstractCegarLoop]: Abstraction has 433 states and 491 transitions. [2018-09-21 18:02:06,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:02:06,923 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 491 transitions. [2018-09-21 18:02:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:02:06,924 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:02:06,924 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:02:06,924 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:02:06,925 INFO L82 PathProgramCache]: Analyzing trace with hash 875930867, now seen corresponding path program 1 times [2018-09-21 18:02:06,925 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:02:06,925 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:02:06,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:02:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:02:07,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:02:07,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:02:07,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:02:07,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:07,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:07,440 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:07,440 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:02:07,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:02:07,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:02:07,520 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:07,546 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:07,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:07,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:02:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:02:07,843 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:02:07,857 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:02:07,858 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:02:07,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:02:07,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:02:07,859 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:02:07,860 INFO L87 Difference]: Start difference. First operand 433 states and 491 transitions. Second operand 9 states. [2018-09-21 18:02:09,157 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 18:02:09,453 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 18:02:32,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:02:32,298 INFO L93 Difference]: Finished difference Result 471 states and 531 transitions. [2018-09-21 18:02:32,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:02:32,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 18:02:32,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:02:32,351 INFO L225 Difference]: With dead ends: 471 [2018-09-21 18:02:32,351 INFO L226 Difference]: Without dead ends: 467 [2018-09-21 18:02:32,352 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:02:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2018-09-21 18:02:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 432. [2018-09-21 18:02:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-09-21 18:02:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 488 transitions. [2018-09-21 18:02:32,363 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 488 transitions. Word has length 50 [2018-09-21 18:02:32,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:02:32,364 INFO L480 AbstractCegarLoop]: Abstraction has 432 states and 488 transitions. [2018-09-21 18:02:32,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:02:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 488 transitions. [2018-09-21 18:02:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:02:32,365 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:02:32,365 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:02:32,368 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:02:32,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1150866178, now seen corresponding path program 1 times [2018-09-21 18:02:32,368 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:02:32,369 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:02:32,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:02:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:02:32,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:02:32,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:02:32,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:02:32,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:32,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:32,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:32,676 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:02:32,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:02:32,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:02:32,755 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:32,780 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:32,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:32,858 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:02:33,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:02:33,338 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:02:33,351 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:02:33,351 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:02:33,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:02:33,352 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:02:33,352 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:02:33,352 INFO L87 Difference]: Start difference. First operand 432 states and 488 transitions. Second operand 9 states. [2018-09-21 18:02:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:02:49,939 INFO L93 Difference]: Finished difference Result 614 states and 680 transitions. [2018-09-21 18:02:49,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:02:49,940 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-09-21 18:02:49,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:02:49,944 INFO L225 Difference]: With dead ends: 614 [2018-09-21 18:02:49,944 INFO L226 Difference]: Without dead ends: 606 [2018-09-21 18:02:49,945 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:02:49,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2018-09-21 18:02:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 422. [2018-09-21 18:02:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2018-09-21 18:02:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 470 transitions. [2018-09-21 18:02:49,958 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 470 transitions. Word has length 52 [2018-09-21 18:02:49,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:02:49,960 INFO L480 AbstractCegarLoop]: Abstraction has 422 states and 470 transitions. [2018-09-21 18:02:49,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:02:49,960 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 470 transitions. [2018-09-21 18:02:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-21 18:02:49,961 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:02:49,961 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:02:49,963 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:02:49,963 INFO L82 PathProgramCache]: Analyzing trace with hash -947575034, now seen corresponding path program 1 times [2018-09-21 18:02:49,963 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:02:49,964 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:02:50,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:02:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:02:50,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:02:50,297 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:02:50,298 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:02:50,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-09-21 18:02:50,309 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:02:50,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 18:02:50,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:50,352 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:50,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:50,377 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 18:02:50,574 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:02:50,581 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:02:50,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2018-09-21 18:02:50,619 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:02:50,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-21 18:02:50,644 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:50,683 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:50,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:50,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 18:02:50,790 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-09-21 18:02:50,797 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:02:50,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-21 18:02:50,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:02:50,818 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:02:50,834 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:02:50,834 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 18:02:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:02:51,224 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:02:51,236 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:02:51,236 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:02:51,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:02:51,237 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:02:51,237 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:02:51,237 INFO L87 Difference]: Start difference. First operand 422 states and 470 transitions. Second operand 11 states. [2018-09-21 18:02:52,337 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 18:02:52,592 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 18:02:52,965 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 18:02:53,454 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-21 18:03:07,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:07,915 INFO L93 Difference]: Finished difference Result 524 states and 581 transitions. [2018-09-21 18:03:07,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:03:07,917 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2018-09-21 18:03:07,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:07,920 INFO L225 Difference]: With dead ends: 524 [2018-09-21 18:03:07,920 INFO L226 Difference]: Without dead ends: 327 [2018-09-21 18:03:07,921 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:03:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-09-21 18:03:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 318. [2018-09-21 18:03:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-09-21 18:03:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 355 transitions. [2018-09-21 18:03:07,931 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 355 transitions. Word has length 52 [2018-09-21 18:03:07,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:07,931 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 355 transitions. [2018-09-21 18:03:07,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:03:07,931 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 355 transitions. [2018-09-21 18:03:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-09-21 18:03:07,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:03:07,934 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:03:07,935 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:03:07,935 INFO L82 PathProgramCache]: Analyzing trace with hash -458516899, now seen corresponding path program 1 times [2018-09-21 18:03:07,936 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:03:07,937 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:03:07,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:03:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:03:09,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:03:09,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:03:09,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:03:09,775 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:09,779 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:09,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:09,796 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:03:09,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:03:09,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:03:09,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:09,906 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:09,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:09,917 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:03:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:03:10,359 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:03:10,388 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:03:10,388 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:03:10,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:03:10,389 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:03:10,389 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:03:10,390 INFO L87 Difference]: Start difference. First operand 318 states and 355 transitions. Second operand 10 states. [2018-09-21 18:03:11,425 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:03:12,230 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-21 18:03:12,514 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-21 18:03:20,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:20,765 INFO L93 Difference]: Finished difference Result 327 states and 364 transitions. [2018-09-21 18:03:20,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:03:20,767 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2018-09-21 18:03:20,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:20,770 INFO L225 Difference]: With dead ends: 327 [2018-09-21 18:03:20,770 INFO L226 Difference]: Without dead ends: 313 [2018-09-21 18:03:20,770 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:03:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-09-21 18:03:20,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2018-09-21 18:03:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-09-21 18:03:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 336 transitions. [2018-09-21 18:03:20,779 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 336 transitions. Word has length 81 [2018-09-21 18:03:20,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:20,779 INFO L480 AbstractCegarLoop]: Abstraction has 307 states and 336 transitions. [2018-09-21 18:03:20,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:03:20,780 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 336 transitions. [2018-09-21 18:03:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-21 18:03:20,782 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:03:20,783 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:03:20,783 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:03:20,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1826014788, now seen corresponding path program 1 times [2018-09-21 18:03:20,785 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:03:20,785 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-09-21 18:03:20,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:03:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:03:24,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:03:24,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:03:24,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:03:24,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:24,667 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:24,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:24,682 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:03:24,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:03:24,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:03:24,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:03:24,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:03:24,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:03:24,752 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:03:25,391 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2018-09-21 18:03:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:03:25,576 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:03:25,632 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:03:25,632 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:03:25,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:03:25,633 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:03:25,633 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:03:25,633 INFO L87 Difference]: Start difference. First operand 307 states and 336 transitions. Second operand 10 states. [2018-09-21 18:03:26,451 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:03:27,123 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 18:03:27,372 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 18:03:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:03:32,271 INFO L93 Difference]: Finished difference Result 305 states and 335 transitions. [2018-09-21 18:03:32,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:03:32,274 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2018-09-21 18:03:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:03:32,275 INFO L225 Difference]: With dead ends: 305 [2018-09-21 18:03:32,275 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:03:32,277 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:03:32,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:03:32,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:03:32,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:03:32,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:03:32,278 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2018-09-21 18:03:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:03:32,280 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:03:32,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:03:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:03:32,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:03:32,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:03:32 BoogieIcfgContainer [2018-09-21 18:03:32,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:03:32,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:03:32,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:03:32,293 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:03:32,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:58:35" (3/4) ... [2018-09-21 18:03:32,300 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:03:32,316 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2018-09-21 18:03:32,317 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 18:03:32,317 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:03:32,317 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_double [2018-09-21 18:03:32,317 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_double [2018-09-21 18:03:32,318 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_pow [2018-09-21 18:03:32,318 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:03:32,360 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2018-09-21 18:03:32,362 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-09-21 18:03:32,365 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 18:03:32,368 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:03:32,646 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:03:32,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:03:32,652 INFO L168 Benchmark]: Toolchain (without parser) took 354398.51 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 242.2 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -277.7 MB). Peak memory consumption was 438.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:32,653 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:03:32,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 919.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:32,654 INFO L168 Benchmark]: Boogie Preprocessor took 284.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 919.6 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:32,654 INFO L168 Benchmark]: RCFGBuilder took 56307.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.4 MB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:32,656 INFO L168 Benchmark]: TraceAbstraction took 296625.25 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 122.2 MB). Free memory was 992.4 MB in the beginning and 779.5 MB in the end (delta: 212.9 MB). Peak memory consumption was 335.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:32,657 INFO L168 Benchmark]: Witness Printer took 358.16 ms. Allocated memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: -9.4 MB). Free memory was 779.5 MB in the beginning and 1.2 GB in the end (delta: -450.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:03:32,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 814.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 919.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 284.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 919.6 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 56307.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.4 MB in the end (delta: 120.9 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296625.25 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 122.2 MB). Free memory was 992.4 MB in the beginning and 779.5 MB in the end (delta: 212.9 MB). Peak memory consumption was 335.1 MB. Max. memory is 11.5 GB. * Witness Printer took 358.16 ms. Allocated memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: -9.4 MB). Free memory was 779.5 MB in the beginning and 1.2 GB in the end (delta: -450.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 576]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 494 locations, 1 error locations. SAFE Result, 296.5s OverallTime, 11 OverallIterations, 1 TraceHistogramMax, 275.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5391 SDtfs, 7428 SDslu, 26338 SDs, 0 SdLazy, 3498 SolverSat, 149 SolverUnsat, 49 SolverUnknown, 0 SolverNotchecked, 239.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 680 GetRequests, 518 SyntacticMatches, 4 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 21.6s 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 452 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 8.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 599 ConstructedInterpolants, 300 QuantifiedInterpolants, 454578 SizeOfPredicates, 90 NumberOfNonLiveVariables, 2401 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...