/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0870b_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_0870b_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 08d6302d3ed7bf310f181699a2211422e4771bf9 --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_0870b_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 08d6302d3ed7bf310f181699a2211422e4771bf9 --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 17:55:53,555 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:55:53,557 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:55:53,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:55:53,576 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:55:53,578 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:55:53,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:55:53,582 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:55:53,585 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:55:53,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:55:53,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:55:53,587 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:55:53,588 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:55:53,589 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:55:53,591 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:55:53,591 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:55:53,592 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:55:53,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:55:53,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:55:53,603 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:55:53,604 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:55:53,609 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:55:53,613 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:55:53,614 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:55:53,614 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:55:53,615 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:55:53,619 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:55:53,620 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:55:53,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:55:53,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:55:53,625 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:55:53,626 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:55:53,627 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:55:53,627 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:55:53,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:55:53,630 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:55:53,630 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:55:53,665 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:55:53,665 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:55:53,666 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:55:53,666 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:55:53,668 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:55:53,669 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:55:53,669 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:55:53,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:55:53,669 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:55:53,670 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:55:53,670 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:55:53,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:55:53,670 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:55:53,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:55:53,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:55:53,671 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:55:53,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:55:53,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:55:53,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:55:53,674 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:55:53,675 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:55:53,675 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:55:53,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:55:53,675 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:55:53,675 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:55:53,675 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:55:53,676 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:55:53,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:55:53,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:55:53,676 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 -> 08d6302d3ed7bf310f181699a2211422e4771bf9 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 17:55:53,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:55:53,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:55:53,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:55:53,786 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:55:53,787 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:55:53,787 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-09-21 17:55:54,138 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07fe5cc88/ef0a3838f75f48c5bd64da88933079f8/FLAG04da7fb7c [2018-09-21 17:55:54,338 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:55:54,339 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-09-21 17:55:54,356 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07fe5cc88/ef0a3838f75f48c5bd64da88933079f8/FLAG04da7fb7c [2018-09-21 17:55:54,371 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07fe5cc88/ef0a3838f75f48c5bd64da88933079f8 [2018-09-21 17:55:54,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:55:54,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:55:54,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:55:54,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:55:54,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:55:54,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:55:54" (1/1) ... [2018-09-21 17:55:54,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558026b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:54, skipping insertion in model container [2018-09-21 17:55:54,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:55:54" (1/1) ... [2018-09-21 17:55:54,401 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:55:54,787 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 17:55:54,794 INFO L168 Benchmark]: Toolchain (without parser) took 418.17 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 17:55:54,796 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:55:54,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.84 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 17:55:54,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 412.84 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 17:55:57,087 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:55:57,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:55:57,110 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:55:57,110 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:55:57,111 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:55:57,113 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:55:57,114 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:55:57,116 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:55:57,117 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:55:57,118 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:55:57,118 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:55:57,119 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:55:57,120 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:55:57,121 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:55:57,122 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:55:57,122 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:55:57,124 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:55:57,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:55:57,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:55:57,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:55:57,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:55:57,132 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:55:57,133 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:55:57,133 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:55:57,134 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:55:57,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:55:57,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:55:57,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:55:57,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:55:57,138 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:55:57,138 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:55:57,138 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:55:57,139 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:55:57,140 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:55:57,140 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:55:57,141 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:55:57,156 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:55:57,156 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:55:57,157 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:55:57,157 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:55:57,158 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:55:57,158 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:55:57,158 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:55:57,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:55:57,159 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:55:57,159 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:55:57,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:55:57,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:55:57,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:55:57,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:55:57,160 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:55:57,160 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:55:57,160 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:55:57,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:55:57,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:55:57,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:55:57,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:55:57,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:55:57,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:55:57,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:55:57,162 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:55:57,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:55:57,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:55:57,162 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:55:57,162 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:55:57,163 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:55:57,163 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:55:57,163 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 -> 08d6302d3ed7bf310f181699a2211422e4771bf9 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 17:55:57,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:55:57,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:55:57,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:55:57,248 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:55:57,248 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:55:57,249 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-09-21 17:55:57,587 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b01b0f1a2/449509f0e5e0430e96993bf8b0104af7/FLAGc2791102a [2018-09-21 17:55:57,774 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:55:57,775 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0870b_true-unreach-call.c [2018-09-21 17:55:57,787 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b01b0f1a2/449509f0e5e0430e96993bf8b0104af7/FLAGc2791102a [2018-09-21 17:55:57,804 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b01b0f1a2/449509f0e5e0430e96993bf8b0104af7 [2018-09-21 17:55:57,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:55:57,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:55:57,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:55:57,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:55:57,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:55:57,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:55:57" (1/1) ... [2018-09-21 17:55:57,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6546c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:57, skipping insertion in model container [2018-09-21 17:55:57,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:55:57" (1/1) ... [2018-09-21 17:55:57,838 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:55:58,338 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:55:58,373 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:55:58,588 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:55:58,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58 WrapperNode [2018-09-21 17:55:58,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:55:58,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:55:58,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:55:58,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:55:58,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (1/1) ... [2018-09-21 17:55:58,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:55:58,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:55:58,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:55:58,879 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:55:58,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (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 17:55:58,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:55:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:55:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2018-09-21 17:55:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2018-09-21 17:55:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:55:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-21 17:55:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_pow [2018-09-21 17:55:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 17:55:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:55:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:55:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:55:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2018-09-21 17:55:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:55:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:55:58,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:55:58,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_pow [2018-09-21 17:55:58,969 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 17:55:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:55:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:55:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:55:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:55:58,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:55:59,398 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:59,877 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:59,897 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:00,367 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:00,379 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:01,454 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,643 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,712 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,724 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,755 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,767 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,784 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:02,914 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:05,337 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:05,375 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:08,097 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:10,299 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:12,560 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:13,354 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:15,562 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:15,606 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:15,656 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:15,770 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:15,783 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:17,343 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:24,492 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:24,551 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:24,630 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:24,708 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:25,059 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:28,036 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:28,068 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:28,169 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:43,734 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:44,701 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:44,711 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:44,786 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,413 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,470 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,550 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,589 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:49,692 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:56:51,785 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:56:51,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:56:51 BoogieIcfgContainer [2018-09-21 17:56:51,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:56:51,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:56:51,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:56:51,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:56:51,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:55:57" (1/3) ... [2018-09-21 17:56:51,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d688b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:56:51, skipping insertion in model container [2018-09-21 17:56:51,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:55:58" (2/3) ... [2018-09-21 17:56:51,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d688b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:56:51, skipping insertion in model container [2018-09-21 17:56:51,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:56:51" (3/3) ... [2018-09-21 17:56:51,804 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0870b_true-unreach-call.c [2018-09-21 17:56:51,818 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:56:51,829 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:56:51,875 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:56:51,876 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:56:51,877 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:56:51,877 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:56:51,877 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:56:51,878 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:56:51,878 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:56:51,878 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:56:51,880 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:56:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states. [2018-09-21 17:56:51,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 17:56:51,928 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:56:51,930 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] [2018-09-21 17:56:51,932 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:56:51,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1207701032, now seen corresponding path program 1 times [2018-09-21 17:56:51,945 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:56:51,945 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 17:56:51,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:56:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:56:52,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:56:52,263 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 17:56:52,264 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:56:52,284 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:56:52,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:56:52,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:56:52,307 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:56:52,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:56:52,311 INFO L87 Difference]: Start difference. First operand 500 states. Second operand 2 states. [2018-09-21 17:56:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:56:52,383 INFO L93 Difference]: Finished difference Result 500 states and 581 transitions. [2018-09-21 17:56:52,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:56:52,385 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 17:56:52,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:56:52,405 INFO L225 Difference]: With dead ends: 500 [2018-09-21 17:56:52,406 INFO L226 Difference]: Without dead ends: 495 [2018-09-21 17:56:52,408 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 17:56:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-21 17:56:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2018-09-21 17:56:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2018-09-21 17:56:52,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 575 transitions. [2018-09-21 17:56:52,500 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 575 transitions. Word has length 22 [2018-09-21 17:56:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:56:52,501 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 575 transitions. [2018-09-21 17:56:52,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:56:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 575 transitions. [2018-09-21 17:56:52,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 17:56:52,503 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:56:52,503 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] [2018-09-21 17:56:52,504 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:56:52,504 INFO L82 PathProgramCache]: Analyzing trace with hash 339299740, now seen corresponding path program 1 times [2018-09-21 17:56:52,505 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:56:52,505 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 17:56:52,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:56:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:56:52,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:56:52,890 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:56:52,905 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:56:52,912 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 17:56:52,942 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:56:52,963 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 17:56:52,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:56:52,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:56:53,058 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 17:56:53,059 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 17:56:53,340 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:56:53,341 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:56:53,342 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 17:56:53,383 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:56:53,403 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 17:56:53,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:56:53,440 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:56:53,515 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 17:56:53,516 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 17:56:53,610 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 17:56:53,618 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:56:53,645 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 17:56:53,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:56:53,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:56:53,687 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 17:56:53,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 17:56:54,037 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 17:56:54,037 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:56:54,053 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:56:54,053 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 17:56:54,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 17:56:54,057 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 17:56:54,057 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:56:54,057 INFO L87 Difference]: Start difference. First operand 495 states and 575 transitions. Second operand 11 states. [2018-09-21 17:56:55,170 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-21 17:56:55,769 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 17:56:56,021 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 17:57:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:20,474 INFO L93 Difference]: Finished difference Result 500 states and 579 transitions. [2018-09-21 17:57:20,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 17:57:20,476 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-09-21 17:57:20,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:20,485 INFO L225 Difference]: With dead ends: 500 [2018-09-21 17:57:20,486 INFO L226 Difference]: Without dead ends: 498 [2018-09-21 17:57:20,488 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 17:57:20,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2018-09-21 17:57:20,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 495. [2018-09-21 17:57:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2018-09-21 17:57:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 574 transitions. [2018-09-21 17:57:20,525 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 574 transitions. Word has length 48 [2018-09-21 17:57:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:20,525 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 574 transitions. [2018-09-21 17:57:20,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 17:57:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 574 transitions. [2018-09-21 17:57:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 17:57:20,527 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:20,527 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 17:57:20,527 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:20,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1457746104, now seen corresponding path program 1 times [2018-09-21 17:57:20,528 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:20,528 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 17:57:20,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:57:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:20,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:20,797 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 17:57:20,804 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 17:57:20,804 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:57:20,834 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:57:20,852 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 17:57:20,852 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:57:20,909 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 17:57:20,928 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 17:57:20,928 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:57:20,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:57:20,948 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 17:57:20,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:57:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:57:21,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:57:21,364 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:57:21,364 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:57:21,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:57:21,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:57:21,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:57:21,365 INFO L87 Difference]: Start difference. First operand 495 states and 574 transitions. Second operand 9 states. [2018-09-21 17:57:23,318 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 17:57:39,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:39,176 INFO L93 Difference]: Finished difference Result 597 states and 686 transitions. [2018-09-21 17:57:39,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 17:57:39,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 17:57:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:39,182 INFO L225 Difference]: With dead ends: 597 [2018-09-21 17:57:39,182 INFO L226 Difference]: Without dead ends: 594 [2018-09-21 17:57:39,183 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 17:57:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2018-09-21 17:57:39,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 495. [2018-09-21 17:57:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2018-09-21 17:57:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 571 transitions. [2018-09-21 17:57:39,204 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 571 transitions. Word has length 50 [2018-09-21 17:57:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:39,205 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 571 transitions. [2018-09-21 17:57:39,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:57:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 571 transitions. [2018-09-21 17:57:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 17:57:39,208 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:39,208 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 17:57:39,209 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:39,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1261232599, now seen corresponding path program 1 times [2018-09-21 17:57:39,210 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:39,211 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 17:57:39,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:57:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:39,422 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 17:57:39,618 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:57:39,638 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:57:39,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 17:57:39,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 17:57:39,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 17:57:39,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 17:57:39,640 INFO L87 Difference]: Start difference. First operand 495 states and 571 transitions. Second operand 7 states. [2018-09-21 17:57:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:54,928 INFO L93 Difference]: Finished difference Result 500 states and 576 transitions. [2018-09-21 17:57:54,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 17:57:54,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-09-21 17:57:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:54,933 INFO L225 Difference]: With dead ends: 500 [2018-09-21 17:57:54,933 INFO L226 Difference]: Without dead ends: 494 [2018-09-21 17:57:54,934 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:57:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-09-21 17:57:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2018-09-21 17:57:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2018-09-21 17:57:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 568 transitions. [2018-09-21 17:57:54,948 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 568 transitions. Word has length 50 [2018-09-21 17:57:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:54,948 INFO L480 AbstractCegarLoop]: Abstraction has 494 states and 568 transitions. [2018-09-21 17:57:54,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 17:57:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 568 transitions. [2018-09-21 17:57:54,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-21 17:57:54,950 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:54,950 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] [2018-09-21 17:57:54,950 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:54,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2047721321, now seen corresponding path program 1 times [2018-09-21 17:57:54,952 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:54,953 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 17:57:54,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:57:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:55,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:58,368 WARN L797 $PredicateComparison]: unable to prove that (= |c___ieee754_pow_#res| (fp.div RNE c_~one_pow~0 |c___ieee754_pow_#in~x|)) is different from false [2018-09-21 17:58:00,749 WARN L819 $PredicateComparison]: unable to prove that (= |c___ieee754_pow_#res| (fp.div RNE c_~one_pow~0 |c___ieee754_pow_#in~x|)) is different from true [2018-09-21 17:58:00,970 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 17:58:00,970 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:00,990 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:00,990 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:58:00,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:58:00,991 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:58:00,991 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=43, Unknown=2, NotChecked=12, Total=72 [2018-09-21 17:58:00,991 INFO L87 Difference]: Start difference. First operand 494 states and 568 transitions. Second operand 9 states. [2018-09-21 17:58:29,494 WARN L178 SmtUtils]: Spent 9.77 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-21 17:58:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:36,472 INFO L93 Difference]: Finished difference Result 499 states and 573 transitions. [2018-09-21 17:58:36,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 17:58:36,473 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-09-21 17:58:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:36,478 INFO L225 Difference]: With dead ends: 499 [2018-09-21 17:58:36,478 INFO L226 Difference]: Without dead ends: 494 [2018-09-21 17:58:36,479 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.9s TimeCoverageRelationStatistics Valid=32, Invalid=97, Unknown=7, NotChecked=20, Total=156 [2018-09-21 17:58:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-09-21 17:58:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2018-09-21 17:58:36,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2018-09-21 17:58:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 567 transitions. [2018-09-21 17:58:36,492 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 567 transitions. Word has length 54 [2018-09-21 17:58:36,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:36,493 INFO L480 AbstractCegarLoop]: Abstraction has 494 states and 567 transitions. [2018-09-21 17:58:36,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:58:36,493 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 567 transitions. [2018-09-21 17:58:36,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-21 17:58:36,494 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:36,494 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] [2018-09-21 17:58:36,495 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2050732470, now seen corresponding path program 1 times [2018-09-21 17:58:36,495 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:36,495 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 17:58:36,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:36,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:36,971 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 17:58:36,971 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:36,990 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:36,990 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:58:36,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:58:36,991 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:58:36,991 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:58:36,991 INFO L87 Difference]: Start difference. First operand 494 states and 567 transitions. Second operand 9 states. [2018-09-21 17:58:50,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:50,327 INFO L93 Difference]: Finished difference Result 499 states and 572 transitions. [2018-09-21 17:58:50,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 17:58:50,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-09-21 17:58:50,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:50,335 INFO L225 Difference]: With dead ends: 499 [2018-09-21 17:58:50,335 INFO L226 Difference]: Without dead ends: 493 [2018-09-21 17:58:50,336 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 17:58:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2018-09-21 17:58:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2018-09-21 17:58:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2018-09-21 17:58:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 565 transitions. [2018-09-21 17:58:50,350 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 565 transitions. Word has length 54 [2018-09-21 17:58:50,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:50,351 INFO L480 AbstractCegarLoop]: Abstraction has 493 states and 565 transitions. [2018-09-21 17:58:50,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:58:50,351 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 565 transitions. [2018-09-21 17:58:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-21 17:58:50,359 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:50,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:58:50,360 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:50,360 INFO L82 PathProgramCache]: Analyzing trace with hash 869856247, now seen corresponding path program 1 times [2018-09-21 17:58:50,361 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:50,361 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 17:58:50,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:50,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:55,094 WARN L178 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 17:59:03,146 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 17:59:03,146 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:03,160 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:03,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:59:03,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:59:03,161 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:59:03,162 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=56, Unknown=1, NotChecked=0, Total=72 [2018-09-21 17:59:03,162 INFO L87 Difference]: Start difference. First operand 493 states and 565 transitions. Second operand 9 states. [2018-09-21 17:59:11,895 WARN L178 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 17:59:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:42,697 INFO L93 Difference]: Finished difference Result 498 states and 570 transitions. [2018-09-21 17:59:42,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 17:59:42,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-09-21 17:59:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:42,702 INFO L225 Difference]: With dead ends: 498 [2018-09-21 17:59:42,702 INFO L226 Difference]: Without dead ends: 493 [2018-09-21 17:59:42,703 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=33, Invalid=121, Unknown=2, NotChecked=0, Total=156 [2018-09-21 17:59:42,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2018-09-21 17:59:42,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2018-09-21 17:59:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2018-09-21 17:59:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 564 transitions. [2018-09-21 17:59:42,718 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 564 transitions. Word has length 54 [2018-09-21 17:59:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:42,718 INFO L480 AbstractCegarLoop]: Abstraction has 493 states and 564 transitions. [2018-09-21 17:59:42,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:59:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 564 transitions. [2018-09-21 17:59:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-21 17:59:42,721 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:42,721 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] [2018-09-21 17:59:42,721 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1733166730, now seen corresponding path program 1 times [2018-09-21 17:59:42,722 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:42,722 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 17:59:42,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:59:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:59:43,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:59:43,051 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:43,052 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:43,053 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 17:59:43,063 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:43,082 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 17:59:43,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:43,099 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:43,118 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 17:59:43,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 17:59:43,303 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:43,306 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:59:43,307 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 17:59:43,358 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:43,383 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 17:59:43,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:43,428 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:43,476 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 17:59:43,476 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 17:59:43,563 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 17:59:43,570 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:59:43,575 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 17:59:43,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:59:43,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:59:43,608 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 17:59:43,608 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 17:59:44,073 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 17:59:44,073 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:59:44,085 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:59:44,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 17:59:44,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 17:59:44,086 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 17:59:44,087 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:59:44,087 INFO L87 Difference]: Start difference. First operand 493 states and 564 transitions. Second operand 11 states. [2018-09-21 17:59:45,266 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 17:59:46,814 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-09-21 17:59:57,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:59:57,011 INFO L93 Difference]: Finished difference Result 592 states and 672 transitions. [2018-09-21 17:59:57,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 17:59:57,014 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2018-09-21 17:59:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:59:57,015 INFO L225 Difference]: With dead ends: 592 [2018-09-21 17:59:57,016 INFO L226 Difference]: Without dead ends: 312 [2018-09-21 17:59:57,016 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2018-09-21 17:59:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-09-21 17:59:57,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2018-09-21 17:59:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-09-21 17:59:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 342 transitions. [2018-09-21 17:59:57,028 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 342 transitions. Word has length 56 [2018-09-21 17:59:57,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:59:57,030 INFO L480 AbstractCegarLoop]: Abstraction has 312 states and 342 transitions. [2018-09-21 17:59:57,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 17:59:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 342 transitions. [2018-09-21 17:59:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-21 17:59:57,031 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:59:57,033 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:59:57,034 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:59:57,034 INFO L82 PathProgramCache]: Analyzing trace with hash -152710154, now seen corresponding path program 1 times [2018-09-21 17:59:57,035 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:59:57,036 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) [2018-09-21 17:59:57,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:00:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:00:00,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:00:00,697 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 18:00:00,713 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 18:00:00,713 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:00:00,739 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:00:00,780 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 18:00:00,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:00:00,830 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 18:00:00,842 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 18:00:00,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:00:00,855 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:00:00,865 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 18:00:00,865 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:00:01,299 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 18:00:01,514 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-21 18:00:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:00:01,791 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:00:01,854 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:00:01,854 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:00:01,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:00:01,855 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:00:01,855 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:00:01,856 INFO L87 Difference]: Start difference. First operand 312 states and 342 transitions. Second operand 11 states. [2018-09-21 18:00:03,562 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2018-09-21 18:00:04,236 WARN L178 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2018-09-21 18:00:04,767 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-09-21 18:00:09,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:00:09,576 INFO L93 Difference]: Finished difference Result 438 states and 483 transitions. [2018-09-21 18:00:09,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:00:09,578 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2018-09-21 18:00:09,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:00:09,581 INFO L225 Difference]: With dead ends: 438 [2018-09-21 18:00:09,581 INFO L226 Difference]: Without dead ends: 312 [2018-09-21 18:00:09,582 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:00:09,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-09-21 18:00:09,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2018-09-21 18:00:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-09-21 18:00:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 341 transitions. [2018-09-21 18:00:09,591 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 341 transitions. Word has length 130 [2018-09-21 18:00:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:00:09,592 INFO L480 AbstractCegarLoop]: Abstraction has 312 states and 341 transitions. [2018-09-21 18:00:09,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:00:09,592 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 341 transitions. [2018-09-21 18:00:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-21 18:00:09,595 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:00:09,595 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:00:09,596 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:00:09,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1008272330, now seen corresponding path program 1 times [2018-09-21 18:00:09,598 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:00:09,598 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 18:00:09,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:00:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:00:13,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:00:13,281 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 18:00:13,289 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 18:00:13,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:00:13,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:00:13,313 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 18:00:13,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:00:13,356 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 18:00:13,361 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 18:00:13,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:00:13,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:00:13,378 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 18:00:13,379 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:00:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:00:13,779 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:00:13,846 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:00:13,847 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:00:13,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:00:13,847 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:00:13,848 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:00:13,848 INFO L87 Difference]: Start difference. First operand 312 states and 341 transitions. Second operand 9 states. [2018-09-21 18:00:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:00:19,411 INFO L93 Difference]: Finished difference Result 306 states and 335 transitions. [2018-09-21 18:00:19,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:00:19,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 131 [2018-09-21 18:00:19,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:00:19,413 INFO L225 Difference]: With dead ends: 306 [2018-09-21 18:00:19,413 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:00:19,413 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:00:19,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:00:19,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:00:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:00:19,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:00:19,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2018-09-21 18:00:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:00:19,414 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:00:19,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:00:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:00:19,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:00:19,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:00:19 BoogieIcfgContainer [2018-09-21 18:00:19,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:00:19,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:00:19,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:00:19,422 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:00:19,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:56:51" (3/4) ... [2018-09-21 18:00:19,426 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:00:19,436 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2018-09-21 18:00:19,436 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-09-21 18:00:19,436 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:00:19,436 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:00:19,437 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_double [2018-09-21 18:00:19,437 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_double [2018-09-21 18:00:19,437 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_pow [2018-09-21 18:00:19,437 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:00:19,456 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2018-09-21 18:00:19,458 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-09-21 18:00:19,460 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 18:00:19,462 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:00:19,638 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:00:19,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:00:19,640 INFO L168 Benchmark]: Toolchain (without parser) took 261831.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.6 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -64.7 MB). Peak memory consumption was 175.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:00:19,641 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:00:19,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 845.21 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 919.6 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:00:19,642 INFO L168 Benchmark]: Boogie Preprocessor took 220.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 919.6 MB in the beginning and 1.1 GB in the end (delta: -205.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:00:19,642 INFO L168 Benchmark]: RCFGBuilder took 52907.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.6 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:00:19,642 INFO L168 Benchmark]: TraceAbstraction took 207634.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 92.8 MB). Free memory was 998.6 MB in the beginning and 1.0 GB in the end (delta: -50.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:00:19,643 INFO L168 Benchmark]: Witness Printer took 216.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:00:19,647 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 845.21 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 919.6 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 220.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 919.6 MB in the beginning and 1.1 GB in the end (delta: -205.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 52907.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.6 MB in the end (delta: 126.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 207634.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 92.8 MB). Free memory was 998.6 MB in the beginning and 1.0 GB in the end (delta: -50.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. * Witness Printer took 216.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 583]: 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 9 procedures, 500 locations, 1 error locations. SAFE Result, 207.5s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 174.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5257 SDtfs, 3706 SDslu, 28746 SDs, 0 SdLazy, 2463 SolverSat, 79 SolverUnsat, 23 SolverUnknown, 0 SolverNotchecked, 122.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 696 GetRequests, 570 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 62.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred 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, 10 MinimizatonAttempts, 102 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 8.7s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 649 NumberOfCodeBlocks, 649 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 639 ConstructedInterpolants, 256 QuantifiedInterpolants, 643523 SizeOfPredicates, 61 NumberOfNonLiveVariables, 2342 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...