./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.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: /usr/bin/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 ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.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 0.1.24-30f4e4a [2019-11-27 23:34:05,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:05,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:05,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:05,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:05,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:05,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:05,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:05,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:05,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:05,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:05,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:05,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:05,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:05,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:05,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:05,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:05,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:05,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:05,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:05,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:05,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:05,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:05,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:05,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:05,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:05,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:05,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:05,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:05,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:05,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:05,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:05,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:05,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:05,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:05,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:05,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:05,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:05,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:05,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:05,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:05,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:34:05,448 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:05,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:05,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:05,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:05,451 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:05,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:05,452 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:05,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:34:05,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:05,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:05,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:05,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:05,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:05,454 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:05,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:05,454 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:05,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:05,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:05,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:05,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:05,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:05,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:05,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:05,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:05,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:05,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:34:05,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:34:05,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:05,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 [2019-11-27 23:34:05,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:05,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:05,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:05,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:05,765 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:05,766 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-27 23:34:05,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5e33212/965c9b0afa9a4171a748cb5f6b3b8eda/FLAG47e9da369 [2019-11-27 23:34:06,446 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:06,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-27 23:34:06,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5e33212/965c9b0afa9a4171a748cb5f6b3b8eda/FLAG47e9da369 [2019-11-27 23:34:06,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f5e33212/965c9b0afa9a4171a748cb5f6b3b8eda [2019-11-27 23:34:06,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:06,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:06,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:06,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:06,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:06,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:06" (1/1) ... [2019-11-27 23:34:06,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b00476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:06, skipping insertion in model container [2019-11-27 23:34:06,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:06" (1/1) ... [2019-11-27 23:34:06,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:06,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:07,445 FATAL L? ?]: 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:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1645) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) 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:1064) 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:2332) 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:697) 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:2332) 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.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1617) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) 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:1336) 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:1029) 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:1407) 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:3464) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:571) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-27 23:34:07,456 INFO L168 Benchmark]: Toolchain (without parser) took 734.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:07,457 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:07,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:07,462 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 731.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 22.7 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:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:34:09,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:09,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:09,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:09,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:09,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:09,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:09,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:09,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:09,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:09,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:09,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:09,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:09,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:09,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:09,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:09,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:09,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:09,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:09,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:09,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:09,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:09,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:09,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:09,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:09,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:09,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:09,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:09,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:09,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:09,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:09,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:09,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:09,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:09,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:09,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:09,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:09,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:09,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:09,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:09,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:09,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:34:09,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:09,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:09,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:09,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:09,446 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:09,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:09,446 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:09,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:09,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:09,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:09,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:09,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:09,448 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:34:09,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:34:09,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:09,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:09,449 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:09,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:09,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:09,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:09,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:09,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:09,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:09,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:09,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:09,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:09,451 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:34:09,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:34:09,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:09,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:34:09,452 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 [2019-11-27 23:34:09,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:09,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:09,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:09,783 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:09,784 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:09,785 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-27 23:34:09,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab38919d4/9d80d60c46b04df5ada1124bf934299b/FLAG960d48ede [2019-11-27 23:34:10,471 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:10,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-27 23:34:10,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab38919d4/9d80d60c46b04df5ada1124bf934299b/FLAG960d48ede [2019-11-27 23:34:10,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab38919d4/9d80d60c46b04df5ada1124bf934299b [2019-11-27 23:34:10,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:10,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:10,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:10,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:10,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:10,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:10" (1/1) ... [2019-11-27 23:34:10,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1798a1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:10, skipping insertion in model container [2019-11-27 23:34:10,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:10" (1/1) ... [2019-11-27 23:34:10,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:10,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:11,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:11,557 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:34:11,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:11,899 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:34:11,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11 WrapperNode [2019-11-27 23:34:11,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:11,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:11,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:34:11,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:34:11,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:11,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:11,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:11,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:34:11,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:34:11,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:34:12,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (1/1) ... [2019-11-27 23:34:12,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:34:12,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:34:12,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:34:12,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:34:12,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (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 [2019-11-27 23:34:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:34:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:34:12,436 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:34:12,436 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-27 23:34:12,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:12 BoogieIcfgContainer [2019-11-27 23:34:12,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:34:12,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:34:12,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:34:12,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:34:12,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:34:10" (1/3) ... [2019-11-27 23:34:12,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecab340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:12, skipping insertion in model container [2019-11-27 23:34:12,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:11" (2/3) ... [2019-11-27 23:34:12,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecab340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:12, skipping insertion in model container [2019-11-27 23:34:12,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:12" (3/3) ... [2019-11-27 23:34:12,449 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2019-11-27 23:34:12,459 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:34:12,466 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-27 23:34:12,478 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-27 23:34:12,501 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:34:12,501 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:34:12,501 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:34:12,501 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:34:12,501 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:34:12,502 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:34:12,502 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:34:12,502 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:34:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-27 23:34:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 23:34:12,523 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:12,524 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 23:34:12,525 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:12,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:12,530 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-27 23:34:12,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:12,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246537780] [2019-11-27 23:34:12,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:34:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:12,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:34:12,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:12,959 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 2 [2019-11-27 23:34:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:12,974 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:12,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:13,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246537780] [2019-11-27 23:34:13,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:13,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:34:13,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872398033] [2019-11-27 23:34:13,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:34:13,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:13,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:34:13,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:13,027 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-11-27 23:34:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:13,066 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2019-11-27 23:34:13,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:13,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-27 23:34:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:13,079 INFO L225 Difference]: With dead ends: 75 [2019-11-27 23:34:13,079 INFO L226 Difference]: Without dead ends: 33 [2019-11-27 23:34:13,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:13,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-27 23:34:13,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-27 23:34:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-27 23:34:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2019-11-27 23:34:13,124 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 4 [2019-11-27 23:34:13,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:13,124 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2019-11-27 23:34:13,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:34:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2019-11-27 23:34:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-27 23:34:13,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:13,126 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:13,339 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:34:13,340 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:13,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:13,340 INFO L82 PathProgramCache]: Analyzing trace with hash 241686798, now seen corresponding path program 1 times [2019-11-27 23:34:13,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:13,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39911385] [2019-11-27 23:34:13,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:34:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:13,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:34:13,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:13,401 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:13,548 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 3 [2019-11-27 23:34:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:13,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39911385] [2019-11-27 23:34:13,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:13,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:34:13,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732342573] [2019-11-27 23:34:13,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:34:13,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:13,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:34:13,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:13,562 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 4 states. [2019-11-27 23:34:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:13,585 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2019-11-27 23:34:13,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:13,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-27 23:34:13,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:13,588 INFO L225 Difference]: With dead ends: 33 [2019-11-27 23:34:13,590 INFO L226 Difference]: Without dead ends: 29 [2019-11-27 23:34:13,591 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:13,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-27 23:34:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-27 23:34:13,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-27 23:34:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2019-11-27 23:34:13,602 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2019-11-27 23:34:13,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:13,603 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2019-11-27 23:34:13,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:34:13,605 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2019-11-27 23:34:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:34:13,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:13,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:13,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:34:13,822 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:13,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:13,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1730276696, now seen corresponding path program 1 times [2019-11-27 23:34:13,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:13,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142270578] [2019-11-27 23:34:13,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:34:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:13,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:34:13,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:13,887 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:13,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142270578] [2019-11-27 23:34:13,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:13,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:34:13,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595826811] [2019-11-27 23:34:13,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:34:13,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:13,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:34:13,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:13,982 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 4 states. [2019-11-27 23:34:14,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:14,003 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2019-11-27 23:34:14,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:14,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-27 23:34:14,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:14,005 INFO L225 Difference]: With dead ends: 29 [2019-11-27 23:34:14,005 INFO L226 Difference]: Without dead ends: 23 [2019-11-27 23:34:14,006 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-27 23:34:14,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-27 23:34:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-27 23:34:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-11-27 23:34:14,010 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-11-27 23:34:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:14,010 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-11-27 23:34:14,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:34:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-11-27 23:34:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 23:34:14,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:14,011 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:14,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:34:14,224 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:14,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:14,224 INFO L82 PathProgramCache]: Analyzing trace with hash 113862466, now seen corresponding path program 1 times [2019-11-27 23:34:14,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:14,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185863531] [2019-11-27 23:34:14,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:34:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:14,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:34:14,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:14,290 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:14,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185863531] [2019-11-27 23:34:14,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:14,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:34:14,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427965917] [2019-11-27 23:34:14,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:34:14,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:14,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:34:14,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:14,303 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2019-11-27 23:34:14,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:14,316 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-27 23:34:14,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:14,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-27 23:34:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:14,319 INFO L225 Difference]: With dead ends: 23 [2019-11-27 23:34:14,319 INFO L226 Difference]: Without dead ends: 19 [2019-11-27 23:34:14,320 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-27 23:34:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-27 23:34:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 23:34:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-27 23:34:14,323 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2019-11-27 23:34:14,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:14,323 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-27 23:34:14,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:34:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-27 23:34:14,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-27 23:34:14,324 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:14,324 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:14,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-27 23:34:14,539 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:14,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:14,540 INFO L82 PathProgramCache]: Analyzing trace with hash -943331954, now seen corresponding path program 1 times [2019-11-27 23:34:14,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:14,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007651521] [2019-11-27 23:34:14,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:34:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:14,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:34:14,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:14,626 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:14,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007651521] [2019-11-27 23:34:14,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:14,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-27 23:34:14,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43971123] [2019-11-27 23:34:14,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:34:14,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:14,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:34:14,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:34:14,640 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2019-11-27 23:34:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:14,646 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-27 23:34:14,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:14,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-27 23:34:14,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:14,647 INFO L225 Difference]: With dead ends: 19 [2019-11-27 23:34:14,647 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:34:14,648 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:34:14,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:34:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:34:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:34:14,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:34:14,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-27 23:34:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:14,650 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:34:14,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:34:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:34:14,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:34:14,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-27 23:34:14,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:34:14,867 INFO L246 CegarLoopResult]: For program point L960(line 960) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point L961(line 961) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:34:14,868 INFO L246 CegarLoopResult]: For program point L961-2(line 961) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point L990(line 990) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point L990-1(line 990) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2019-11-27 23:34:14,869 INFO L246 CegarLoopResult]: For program point L953(lines 953 991) no Hoare annotation was computed. [2019-11-27 23:34:14,870 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2019-11-27 23:34:14,870 INFO L246 CegarLoopResult]: For program point L974(line 974) no Hoare annotation was computed. [2019-11-27 23:34:14,870 INFO L246 CegarLoopResult]: For program point L974-1(line 974) no Hoare annotation was computed. [2019-11-27 23:34:14,870 INFO L246 CegarLoopResult]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2019-11-27 23:34:14,870 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:34:14,870 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2019-11-27 23:34:14,871 INFO L246 CegarLoopResult]: For program point L983(line 983) no Hoare annotation was computed. [2019-11-27 23:34:14,871 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2019-11-27 23:34:14,871 INFO L246 CegarLoopResult]: For program point L983-1(line 983) no Hoare annotation was computed. [2019-11-27 23:34:14,871 INFO L246 CegarLoopResult]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2019-11-27 23:34:14,871 INFO L246 CegarLoopResult]: For program point L975(line 975) no Hoare annotation was computed. [2019-11-27 23:34:14,871 INFO L246 CegarLoopResult]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point L967(line 967) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point L967-1(line 967) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point L959(line 959) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point L959-1(line 959) no Hoare annotation was computed. [2019-11-27 23:34:14,872 INFO L246 CegarLoopResult]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2019-11-27 23:34:14,873 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2019-11-27 23:34:14,873 INFO L246 CegarLoopResult]: For program point L984(line 984) no Hoare annotation was computed. [2019-11-27 23:34:14,873 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-11-27 23:34:14,873 INFO L246 CegarLoopResult]: For program point L984-2(line 984) no Hoare annotation was computed. [2019-11-27 23:34:14,873 INFO L246 CegarLoopResult]: For program point L976(line 976) no Hoare annotation was computed. [2019-11-27 23:34:14,873 INFO L246 CegarLoopResult]: For program point L976-2(line 976) no Hoare annotation was computed. [2019-11-27 23:34:14,874 INFO L246 CegarLoopResult]: For program point L968(line 968) no Hoare annotation was computed. [2019-11-27 23:34:14,874 INFO L246 CegarLoopResult]: For program point L968-2(line 968) no Hoare annotation was computed. [2019-11-27 23:34:14,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:34:14 BoogieIcfgContainer [2019-11-27 23:34:14,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:34:14,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:34:14,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:34:14,885 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:34:14,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:12" (3/4) ... [2019-11-27 23:34:14,889 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:34:14,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-27 23:34:14,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:34:14,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:34:14,979 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:34:14,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:34:14,982 INFO L168 Benchmark]: Toolchain (without parser) took 4237.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 952.3 MB in the beginning and 858.5 MB in the end (delta: 93.8 MB). Peak memory consumption was 215.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:14,982 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:14,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1155.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -67.4 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:14,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:14,984 INFO L168 Benchmark]: Boogie Preprocessor took 30.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:14,985 INFO L168 Benchmark]: RCFGBuilder took 411.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:14,986 INFO L168 Benchmark]: TraceAbstraction took 2444.50 ms. Allocated memory is still 1.2 GB. Free memory was 989.7 MB in the beginning and 865.2 MB in the end (delta: 124.4 MB). Peak memory consumption was 124.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:14,991 INFO L168 Benchmark]: Witness Printer took 95.59 ms. Allocated memory is still 1.2 GB. Free memory was 865.2 MB in the beginning and 858.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:14,994 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1155.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -67.4 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 411.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2444.50 ms. Allocated memory is still 1.2 GB. Free memory was 989.7 MB in the beginning and 865.2 MB in the end (delta: 124.4 MB). Peak memory consumption was 124.4 MB. Max. memory is 11.5 GB. * Witness Printer took 95.59 ms. Allocated memory is still 1.2 GB. Free memory was 865.2 MB in the beginning and 858.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 968]: 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 - PositiveResult [Line: 974]: 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: 967]: 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: 961]: 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 - 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. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 91 SDslu, 42 SDs, 0 SdLazy, 15 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s 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 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 1662 SizeOfPredicates, 5 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...