./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i -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 356e353e7bb6e96bd959fe4862b56669bada9c19 .............................................................................................................................................................. 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i -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 356e353e7bb6e96bd959fe4862b56669bada9c19 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:55:11,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:55:11,682 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:55:11,700 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:55:11,701 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:55:11,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:55:11,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:55:11,706 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:55:11,707 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:55:11,708 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:55:11,709 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:55:11,709 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:55:11,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:55:11,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:55:11,712 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:55:11,713 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:55:11,714 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:55:11,716 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:55:11,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:55:11,719 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:55:11,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:55:11,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:55:11,724 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:55:11,724 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:55:11,724 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:55:11,725 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:55:11,726 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:55:11,727 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:55:11,728 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:55:11,729 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:55:11,729 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:55:11,730 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:55:11,730 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:55:11,730 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:55:11,732 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:55:11,732 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:55:11,733 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:55:11,748 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:55:11,749 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:55:11,750 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:55:11,750 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:55:11,750 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:55:11,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:55:11,751 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:55:11,751 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:55:11,751 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:55:11,751 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:55:11,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:55:11,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:55:11,752 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:55:11,752 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:55:11,752 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:55:11,752 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:55:11,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:55:11,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:55:11,753 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:55:11,753 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:55:11,753 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:55:11,753 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:55:11,754 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:55:11,754 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:55:11,754 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:55:11,754 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:55:11,754 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:55:11,754 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:55:11,756 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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2019-01-12 07:55:11,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:55:11,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:55:11,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:55:11,855 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:55:11,856 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:55:11,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2019-01-12 07:55:11,918 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628eccb66/bb1d2d49ca534660b5dcf80283dba9e4/FLAG9b0bdbce5 [2019-01-12 07:55:12,444 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:55:12,444 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2019-01-12 07:55:12,461 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628eccb66/bb1d2d49ca534660b5dcf80283dba9e4/FLAG9b0bdbce5 [2019-01-12 07:55:12,728 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/628eccb66/bb1d2d49ca534660b5dcf80283dba9e4 [2019-01-12 07:55:12,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:55:12,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:55:12,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:12,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:55:12,738 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:55:12,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:12" (1/1) ... [2019-01-12 07:55:12,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22996d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:12, skipping insertion in model container [2019-01-12 07:55:12,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:12" (1/1) ... [2019-01-12 07:55:12,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:55:12,810 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:55:13,350 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1678) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:999) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:666) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1272) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:964) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1343) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3447) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-01-12 07:55:13,355 INFO L168 Benchmark]: Toolchain (without parser) took 623.28 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:13,357 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:13,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:13,361 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 620.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-12 07:55:15,491 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:55:15,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:55:15,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:55:15,513 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:55:15,514 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:55:15,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:55:15,525 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:55:15,527 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:55:15,528 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:55:15,529 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:55:15,529 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:55:15,530 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:55:15,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:55:15,532 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:55:15,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:55:15,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:55:15,536 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:55:15,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:55:15,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:55:15,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:55:15,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:55:15,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:55:15,545 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:55:15,545 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:55:15,546 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:55:15,547 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:55:15,548 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:55:15,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:55:15,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:55:15,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:55:15,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:55:15,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:55:15,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:55:15,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:55:15,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:55:15,553 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:55:15,569 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:55:15,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:55:15,571 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:55:15,571 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:55:15,571 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:55:15,571 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:55:15,572 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:55:15,572 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:55:15,572 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:55:15,572 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:55:15,572 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:55:15,572 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:55:15,573 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:55:15,573 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:55:15,573 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:55:15,573 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:55:15,573 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:55:15,574 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:55:15,574 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:55:15,574 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:55:15,574 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:55:15,574 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:55:15,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:55:15,575 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:55:15,575 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:55:15,575 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:55:15,575 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:55:15,575 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:55:15,575 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:55:15,576 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:55:15,576 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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2019-01-12 07:55:15,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:55:15,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:55:15,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:55:15,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:55:15,645 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:55:15,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2019-01-12 07:55:15,715 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f34faca/ef2306d779b94e08bacb45ec0e75fb29/FLAG50975698e [2019-01-12 07:55:16,325 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:55:16,326 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2019-01-12 07:55:16,345 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f34faca/ef2306d779b94e08bacb45ec0e75fb29/FLAG50975698e [2019-01-12 07:55:16,530 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44f34faca/ef2306d779b94e08bacb45ec0e75fb29 [2019-01-12 07:55:16,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:55:16,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:55:16,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:16,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:55:16,540 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:55:16,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:16" (1/1) ... [2019-01-12 07:55:16,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a06803e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:16, skipping insertion in model container [2019-01-12 07:55:16,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:55:16" (1/1) ... [2019-01-12 07:55:16,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:55:16,632 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:55:17,317 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:55:17,330 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:55:17,406 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:55:17,936 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:55:17,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17 WrapperNode [2019-01-12 07:55:17,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:55:17,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:55:17,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:55:17,939 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:55:17,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:17,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:55:18,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:55:18,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:55:18,013 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:55:18,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (1/1) ... [2019-01-12 07:55:18,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:55:18,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:55:18,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:55:18,043 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:55:18,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (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 [2019-01-12 07:55:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:55:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:55:18,592 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:55:18,592 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 07:55:18,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:18 BoogieIcfgContainer [2019-01-12 07:55:18,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:55:18,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:55:18,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:55:18,600 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:55:18,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:55:16" (1/3) ... [2019-01-12 07:55:18,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc27bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:55:18, skipping insertion in model container [2019-01-12 07:55:18,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:55:17" (2/3) ... [2019-01-12 07:55:18,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc27bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:55:18, skipping insertion in model container [2019-01-12 07:55:18,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:18" (3/3) ... [2019-01-12 07:55:18,606 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp4_true-unreach-call.i [2019-01-12 07:55:18,617 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:55:18,627 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-01-12 07:55:18,644 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-01-12 07:55:18,676 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:55:18,677 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:55:18,678 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:55:18,678 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:55:18,678 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:55:18,678 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:55:18,678 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:55:18,678 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:55:18,679 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:55:18,699 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-01-12 07:55:18,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-12 07:55:18,706 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:18,707 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-12 07:55:18,710 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:18,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:18,716 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-01-12 07:55:18,721 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:18,722 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 [2019-01-12 07:55:18,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:18,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,009 WARN L181 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 2 [2019-01-12 07:55:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,026 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,056 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2019-01-12 07:55:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,106 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2019-01-12 07:55:19,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-12 07:55:19,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,120 INFO L225 Difference]: With dead ends: 75 [2019-01-12 07:55:19,120 INFO L226 Difference]: Without dead ends: 33 [2019-01-12 07:55:19,123 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-01-12 07:55:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-01-12 07:55:19,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-12 07:55:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2019-01-12 07:55:19,158 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 4 [2019-01-12 07:55:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,159 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2019-01-12 07:55:19,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2019-01-12 07:55:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 07:55:19,159 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:19,159 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:55:19,160 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:19,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:19,161 INFO L82 PathProgramCache]: Analyzing trace with hash 241686798, now seen corresponding path program 1 times [2019-01-12 07:55:19,161 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:19,161 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 [2019-01-12 07:55:19,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:19,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,283 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,305 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 3 states. [2019-01-12 07:55:19,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,332 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2019-01-12 07:55:19,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-12 07:55:19,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,334 INFO L225 Difference]: With dead ends: 33 [2019-01-12 07:55:19,334 INFO L226 Difference]: Without dead ends: 29 [2019-01-12 07:55:19,335 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-01-12 07:55:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-01-12 07:55:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-01-12 07:55:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2019-01-12 07:55:19,339 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2019-01-12 07:55:19,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,339 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2019-01-12 07:55:19,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2019-01-12 07:55:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-12 07:55:19,340 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:19,340 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:55:19,341 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:19,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:19,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1730276696, now seen corresponding path program 1 times [2019-01-12 07:55:19,342 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:19,342 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 [2019-01-12 07:55:19,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:19,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,405 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,422 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 3 states. [2019-01-12 07:55:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,460 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2019-01-12 07:55:19,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-01-12 07:55:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,462 INFO L225 Difference]: With dead ends: 29 [2019-01-12 07:55:19,462 INFO L226 Difference]: Without dead ends: 23 [2019-01-12 07:55:19,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-12 07:55:19,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-01-12 07:55:19,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-12 07:55:19,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-01-12 07:55:19,466 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-01-12 07:55:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,466 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-01-12 07:55:19,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-01-12 07:55:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-12 07:55:19,467 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:19,468 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:55:19,468 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:19,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:19,468 INFO L82 PathProgramCache]: Analyzing trace with hash 113862466, now seen corresponding path program 1 times [2019-01-12 07:55:19,469 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:19,469 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 [2019-01-12 07:55:19,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:55:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:19,521 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,581 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,598 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 3 states. [2019-01-12 07:55:19,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,622 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-01-12 07:55:19,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-01-12 07:55:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,625 INFO L225 Difference]: With dead ends: 23 [2019-01-12 07:55:19,625 INFO L226 Difference]: Without dead ends: 19 [2019-01-12 07:55:19,625 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-12 07:55:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-12 07:55:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-12 07:55:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-01-12 07:55:19,630 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2019-01-12 07:55:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,633 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-01-12 07:55:19,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-01-12 07:55:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 07:55:19,636 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:55:19,636 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:55:19,639 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:55:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:55:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash -943331954, now seen corresponding path program 1 times [2019-01-12 07:55:19,642 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:55:19,644 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) [2019-01-12 07:55:19,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-01-12 07:55:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 07:55:19,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 07:55:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 07:55:19,819 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 07:55:19,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 07:55:19,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 07:55:19,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 07:55:19,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 07:55:19,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,833 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2019-01-12 07:55:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 07:55:19,848 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-01-12 07:55:19,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 07:55:19,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-01-12 07:55:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 07:55:19,850 INFO L225 Difference]: With dead ends: 19 [2019-01-12 07:55:19,850 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 07:55:19,850 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 07:55:19,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 07:55:19,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 07:55:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 07:55:19,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 07:55:19,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-01-12 07:55:19,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 07:55:19,852 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 07:55:19,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 07:55:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 07:55:19,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 07:55:19,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 07:55:19,862 INFO L448 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2019-01-12 07:55:19,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2019-01-12 07:55:19,863 INFO L448 ceAbstractionStarter]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2019-01-12 07:55:19,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2019-01-12 07:55:19,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2019-01-12 07:55:19,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point L961-2(line 961) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point L990(line 990) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point L990-1(line 990) no Hoare annotation was computed. [2019-01-12 07:55:19,864 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,865 INFO L448 ceAbstractionStarter]: For program point L953(lines 953 991) no Hoare annotation was computed. [2019-01-12 07:55:19,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-01-12 07:55:19,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2019-01-12 07:55:19,867 INFO L448 ceAbstractionStarter]: For program point L974(line 974) no Hoare annotation was computed. [2019-01-12 07:55:19,867 INFO L448 ceAbstractionStarter]: For program point L974-1(line 974) no Hoare annotation was computed. [2019-01-12 07:55:19,867 INFO L448 ceAbstractionStarter]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2019-01-12 07:55:19,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2019-01-12 07:55:19,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2019-01-12 07:55:19,869 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 07:55:19,869 INFO L448 ceAbstractionStarter]: For program point L983(line 983) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L983-1(line 983) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L975(line 975) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L967-1(line 967) no Hoare annotation was computed. [2019-01-12 07:55:19,870 INFO L448 ceAbstractionStarter]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L959-1(line 959) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L984(line 984) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L984-2(line 984) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L976(line 976) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L976-2(line 976) no Hoare annotation was computed. [2019-01-12 07:55:19,871 INFO L448 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2019-01-12 07:55:19,872 INFO L448 ceAbstractionStarter]: For program point L968-2(line 968) no Hoare annotation was computed. [2019-01-12 07:55:19,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:55:19 BoogieIcfgContainer [2019-01-12 07:55:19,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:55:19,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:55:19,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:55:19,882 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:55:19,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:55:18" (3/4) ... [2019-01-12 07:55:19,887 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 07:55:19,902 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 07:55:19,902 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 07:55:19,902 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-12 07:55:19,966 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:55:19,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:55:19,967 INFO L168 Benchmark]: Toolchain (without parser) took 3433.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 947.3 MB in the beginning and 985.9 MB in the end (delta: -38.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,969 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:19,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1401.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 136.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,970 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:55:19,971 INFO L168 Benchmark]: RCFGBuilder took 550.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,971 INFO L168 Benchmark]: TraceAbstraction took 1286.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 78.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,972 INFO L168 Benchmark]: Witness Printer took 85.06 ms. Allocated memory is still 1.1 GB. Free memory was 992.0 MB in the beginning and 985.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-01-12 07:55:19,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1401.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 136.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 550.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1286.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 78.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 11.5 GB. * Witness Printer took 85.06 ms. Allocated memory is still 1.1 GB. Free memory was 992.0 MB in the beginning and 985.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 974]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 984]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 975]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 990]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 959]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 967]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 11 error locations. SAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 109 SDtfs, 73 SDslu, 37 SDs, 0 SdLazy, 14 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 849 SizeOfPredicates, 5 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...