./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/float21.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ...................................................................................................................................................................... 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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/float21.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:57:17,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:17,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:17,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:17,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:17,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:17,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:17,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:17,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:17,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:17,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:17,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:17,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:17,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:17,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:17,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:17,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:17,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:17,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:17,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:17,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:17,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:17,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:17,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:17,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:17,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:17,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:17,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:17,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:17,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:17,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:17,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:17,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:17,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:17,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:17,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:17,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:17,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:17,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:17,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:17,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:17,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:57:17,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:17,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:17,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:17,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:17,485 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:17,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:17,486 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:17,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:57:17,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:17,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:17,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:17,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:17,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:17,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:17,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:17,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:17,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:17,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:17,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:17,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:17,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:17,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:17,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:17,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:17,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:17,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:57:17,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:57:17,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:17,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:17,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-24 21:57:17,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:17,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:17,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:17,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:17,961 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:17,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 21:57:18,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee983dbe/ad7d199447544cce9a8840af9a0fb205/FLAG5789661da [2020-10-24 21:57:18,740 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:18,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 21:57:18,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee983dbe/ad7d199447544cce9a8840af9a0fb205/FLAG5789661da [2020-10-24 21:57:18,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bee983dbe/ad7d199447544cce9a8840af9a0fb205 [2020-10-24 21:57:18,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:18,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:18,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:18,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:18,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:18,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c655e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18, skipping insertion in model container [2020-10-24 21:57:18,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:19,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:19,679 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.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:1080) 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:2342) 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:705) 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:2342) 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:2342) 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:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) 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:1423) 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:3209) 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.CHandler.visit(CHandler.java:579) 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:128) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 21:57:19,697 INFO L168 Benchmark]: Toolchain (without parser) took 736.62 ms. Allocated memory is still 54.5 MB. Free memory was 38.6 MB in the beginning and 26.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,698 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 22.0 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:19,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.20 ms. Allocated memory is still 54.5 MB. Free memory was 37.9 MB in the beginning and 26.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 22.0 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 724.20 ms. Allocated memory is still 54.5 MB. Free memory was 37.9 MB in the beginning and 26.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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 0.2.0-a4ecdab [2020-10-24 21:57:22,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:22,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:22,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:22,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:22,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:22,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:22,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:22,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:22,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:22,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:22,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:22,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:22,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:22,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:22,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:22,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:22,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:22,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:22,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:22,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:22,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:22,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:22,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:22,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:22,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:22,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:22,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:22,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:22,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:22,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:22,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:22,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:22,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:22,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:22,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:22,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:22,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:22,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:22,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:22,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:22,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:57:22,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:22,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:22,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:22,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:22,266 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:22,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:22,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:22,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:22,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:22,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:22,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:22,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:22,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:57:22,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:57:22,270 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:22,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:22,271 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:22,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:22,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:22,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:22,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:22,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:22,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:22,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:22,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:22,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:22,274 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:57:22,275 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:57:22,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:22,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:22,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:57:22,276 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-24 21:57:22,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:22,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:22,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:22,747 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:22,748 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:22,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 21:57:22,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72585ec6/4d230b83970e4a59b203460e1add1ce3/FLAG7c468035b [2020-10-24 21:57:23,576 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:23,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 21:57:23,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72585ec6/4d230b83970e4a59b203460e1add1ce3/FLAG7c468035b [2020-10-24 21:57:23,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72585ec6/4d230b83970e4a59b203460e1add1ce3 [2020-10-24 21:57:23,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:23,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:23,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:23,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:23,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:23,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:23" (1/1) ... [2020-10-24 21:57:23,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aed5e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:23, skipping insertion in model container [2020-10-24 21:57:23,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:23" (1/1) ... [2020-10-24 21:57:23,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:23,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:24,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:24,540 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:24,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:24,943 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:24,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24 WrapperNode [2020-10-24 21:57:24,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:24,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:24,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:24,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:24,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:25,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:25,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:25,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:25,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:25,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:25,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:25,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:25,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:25,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (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 [2020-10-24 21:57:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:57:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:25,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:25,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:29,803 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:29,804 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-24 21:57:29,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:29 BoogieIcfgContainer [2020-10-24 21:57:29,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:29,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:29,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:29,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:29,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:23" (1/3) ... [2020-10-24 21:57:29,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c04b6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:29, skipping insertion in model container [2020-10-24 21:57:29,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (2/3) ... [2020-10-24 21:57:29,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c04b6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:29, skipping insertion in model container [2020-10-24 21:57:29,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:29" (3/3) ... [2020-10-24 21:57:29,815 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2020-10-24 21:57:29,827 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:29,832 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-24 21:57:29,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-24 21:57:29,874 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:29,880 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:29,880 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:29,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:29,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:29,881 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:29,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:29,882 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-24 21:57:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 21:57:29,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:29,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 21:57:29,906 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:29,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:29,913 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-10-24 21:57:29,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:29,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010813541] [2020-10-24 21:57:29,926 INFO L95 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 [2020-10-24 21:57:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:29,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 21:57:29,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:30,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:30,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:30,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010813541] [2020-10-24 21:57:30,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:30,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:57:30,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065090393] [2020-10-24 21:57:30,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:57:30,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:30,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:57:30,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:30,131 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-24 21:57:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:33,425 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2020-10-24 21:57:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:57:33,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-24 21:57:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:33,468 INFO L225 Difference]: With dead ends: 132 [2020-10-24 21:57:33,468 INFO L226 Difference]: Without dead ends: 54 [2020-10-24 21:57:33,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-24 21:57:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-24 21:57:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-24 21:57:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2020-10-24 21:57:33,511 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 5 [2020-10-24 21:57:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:33,512 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2020-10-24 21:57:33,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:57:33,512 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2020-10-24 21:57:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 21:57:33,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:33,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:33,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:57:33,730 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:33,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:33,732 INFO L82 PathProgramCache]: Analyzing trace with hash 442954858, now seen corresponding path program 1 times [2020-10-24 21:57:33,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:33,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227187052] [2020-10-24 21:57:33,734 INFO L95 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 [2020-10-24 21:57:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:33,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 21:57:33,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:34,105 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2020-10-24 21:57:34,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:57:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:34,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:34,250 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,252 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,256 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,257 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,261 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,262 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,267 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,269 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,271 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,272 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,276 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,277 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,280 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,281 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,285 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 21:57:34,287 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,292 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,292 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,296 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 21:57:34,298 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,301 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 21:57:34,302 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:34,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227187052] [2020-10-24 21:57:34,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:34,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 21:57:34,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386117749] [2020-10-24 21:57:34,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:57:34,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:34,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:57:34,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 21:57:34,398 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand 8 states. [2020-10-24 21:57:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:39,854 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2020-10-24 21:57:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 21:57:39,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-10-24 21:57:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:39,870 INFO L225 Difference]: With dead ends: 54 [2020-10-24 21:57:39,872 INFO L226 Difference]: Without dead ends: 45 [2020-10-24 21:57:39,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-24 21:57:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-24 21:57:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-24 21:57:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-24 21:57:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 44 transitions. [2020-10-24 21:57:39,879 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 44 transitions. Word has length 8 [2020-10-24 21:57:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:39,879 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 44 transitions. [2020-10-24 21:57:39,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:57:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 44 transitions. [2020-10-24 21:57:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 21:57:39,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:39,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:40,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 21:57:40,082 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:40,084 INFO L82 PathProgramCache]: Analyzing trace with hash 847036503, now seen corresponding path program 1 times [2020-10-24 21:57:40,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:40,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968645376] [2020-10-24 21:57:40,085 INFO L95 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 [2020-10-24 21:57:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:40,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 21:57:40,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:40,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:40,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:40,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968645376] [2020-10-24 21:57:40,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:40,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:57:40,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774900552] [2020-10-24 21:57:40,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:57:40,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:40,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:57:40,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:40,201 INFO L87 Difference]: Start difference. First operand 45 states and 44 transitions. Second operand 4 states. [2020-10-24 21:57:44,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:44,373 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2020-10-24 21:57:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:57:44,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-24 21:57:44,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:44,384 INFO L225 Difference]: With dead ends: 45 [2020-10-24 21:57:44,384 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 21:57:44,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 21:57:44,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 21:57:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 21:57:44,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 38 transitions. [2020-10-24 21:57:44,390 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 38 transitions. Word has length 9 [2020-10-24 21:57:44,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:44,390 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 38 transitions. [2020-10-24 21:57:44,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:57:44,391 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions. [2020-10-24 21:57:44,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 21:57:44,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:44,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:44,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 21:57:44,596 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:44,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1454326907, now seen corresponding path program 1 times [2020-10-24 21:57:44,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:44,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822377622] [2020-10-24 21:57:44,598 INFO L95 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 [2020-10-24 21:57:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:44,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 21:57:44,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:45,108 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 17 [2020-10-24 21:57:45,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:57:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:45,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:46,098 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-24 21:57:47,735 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-10-24 21:57:47,742 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,743 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,744 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,746 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,747 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,748 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,749 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,750 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,752 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,753 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,756 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:57:47,757 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-24 21:57:47,757 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-24 21:57:47,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-24 21:57:47,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-24 21:57:50,143 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2020-10-24 21:57:50,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:50,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822377622] [2020-10-24 21:57:50,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:50,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 21:57:50,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229052450] [2020-10-24 21:57:50,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:57:50,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:50,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:57:50,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 21:57:50,201 INFO L87 Difference]: Start difference. First operand 39 states and 38 transitions. Second operand 8 states. [2020-10-24 21:57:54,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:54,351 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2020-10-24 21:57:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 21:57:54,361 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-24 21:57:54,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:54,362 INFO L225 Difference]: With dead ends: 39 [2020-10-24 21:57:54,362 INFO L226 Difference]: Without dead ends: 36 [2020-10-24 21:57:54,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-24 21:57:54,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-24 21:57:54,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-24 21:57:54,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-24 21:57:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2020-10-24 21:57:54,366 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 12 [2020-10-24 21:57:54,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:54,366 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2020-10-24 21:57:54,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:57:54,367 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-10-24 21:57:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 21:57:54,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:54,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:54,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 21:57:54,571 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:54,572 INFO L82 PathProgramCache]: Analyzing trace with hash 2134798987, now seen corresponding path program 1 times [2020-10-24 21:57:54,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:54,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973424662] [2020-10-24 21:57:54,574 INFO L95 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 [2020-10-24 21:57:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:54,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 21:57:54,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:54,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:54,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973424662] [2020-10-24 21:57:54,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:54,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:57:54,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86972892] [2020-10-24 21:57:54,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:57:54,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:54,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:57:54,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:54,705 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 4 states. [2020-10-24 21:57:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:57,688 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-10-24 21:57:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:57:57,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-24 21:57:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:57,699 INFO L225 Difference]: With dead ends: 36 [2020-10-24 21:57:57,699 INFO L226 Difference]: Without dead ends: 30 [2020-10-24 21:57:57,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-24 21:57:57,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-24 21:57:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 21:57:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2020-10-24 21:57:57,705 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 13 [2020-10-24 21:57:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:57,705 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2020-10-24 21:57:57,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:57:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-10-24 21:57:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 21:57:57,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:57,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:57,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 21:57:57,910 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:57,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:57,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1441729926, now seen corresponding path program 1 times [2020-10-24 21:57:57,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:57,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406335674] [2020-10-24 21:57:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-24 21:57:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:57,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 21:57:57,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:58,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:58,431 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-10-24 21:57:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:58,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406335674] [2020-10-24 21:57:58,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:58,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:57:58,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757465089] [2020-10-24 21:57:58,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:57:58,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:58,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:57:58,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:57:58,440 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 4 states. [2020-10-24 21:58:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:58:00,958 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-10-24 21:58:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:58:00,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-24 21:58:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:58:00,968 INFO L225 Difference]: With dead ends: 30 [2020-10-24 21:58:00,968 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 21:58:00,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:58:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 21:58:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 21:58:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 21:58:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-10-24 21:58:00,971 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2020-10-24 21:58:00,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:58:00,971 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-10-24 21:58:00,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:58:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-10-24 21:58:00,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 21:58:00,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:58:00,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:58:01,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 21:58:01,176 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:58:01,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:58:01,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1743616871, now seen corresponding path program 1 times [2020-10-24 21:58:01,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:58:01,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756746891] [2020-10-24 21:58:01,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-24 21:58:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:58:01,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 21:58:01,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:58:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:01,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:58:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:01,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756746891] [2020-10-24 21:58:01,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:58:01,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:58:01,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115058905] [2020-10-24 21:58:01,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:58:01,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:58:01,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:58:01,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:58:01,616 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 4 states. [2020-10-24 21:58:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:58:04,580 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-10-24 21:58:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:58:04,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-24 21:58:04,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:58:04,590 INFO L225 Difference]: With dead ends: 27 [2020-10-24 21:58:04,590 INFO L226 Difference]: Without dead ends: 24 [2020-10-24 21:58:04,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:58:04,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-24 21:58:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-24 21:58:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-24 21:58:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-10-24 21:58:04,593 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 16 [2020-10-24 21:58:04,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:58:04,593 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-10-24 21:58:04,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:58:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-10-24 21:58:04,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 21:58:04,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:58:04,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:58:04,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-24 21:58:04,801 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:58:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:58:04,803 INFO L82 PathProgramCache]: Analyzing trace with hash -420200872, now seen corresponding path program 1 times [2020-10-24 21:58:04,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:58:04,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915840905] [2020-10-24 21:58:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-24 21:58:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:58:05,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 21:58:05,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:58:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:05,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:58:12,125 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 9 [2020-10-24 21:58:12,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:12,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915840905] [2020-10-24 21:58:12,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:58:12,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 21:58:12,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001355148] [2020-10-24 21:58:12,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 21:58:12,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:58:12,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 21:58:12,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 21:58:12,147 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 5 states. [2020-10-24 21:58:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:58:14,534 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-10-24 21:58:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 21:58:14,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-24 21:58:14,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:58:14,545 INFO L225 Difference]: With dead ends: 24 [2020-10-24 21:58:14,545 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:58:14,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 21:58:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:58:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:58:14,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:58:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:58:14,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-24 21:58:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:58:14,546 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:58:14,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 21:58:14,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:58:14,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:58:14,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-24 21:58:14,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:58:14,794 INFO L274 CegarLoopResult]: For program point L2-1(line 391) no Hoare annotation was computed. [2020-10-24 21:58:14,794 INFO L274 CegarLoopResult]: For program point L2-2(line 402) no Hoare annotation was computed. [2020-10-24 21:58:14,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,794 INFO L274 CegarLoopResult]: For program point L399-1(line 399) no Hoare annotation was computed. [2020-10-24 21:58:14,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,795 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:58:14,795 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-24 21:58:14,795 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-24 21:58:14,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:58:14,795 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-10-24 21:58:14,795 INFO L274 CegarLoopResult]: For program point L384-2(line 384) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point L402-1(line 402) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L270 CegarLoopResult]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point L387-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point L388-1(line 388) no Hoare annotation was computed. [2020-10-24 21:58:14,796 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point L391-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point L392-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point L393-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point L394-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,797 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,798 INFO L274 CegarLoopResult]: For program point L395-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,798 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:58:14,798 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,798 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,798 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,799 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,799 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,799 INFO L274 CegarLoopResult]: For program point L396-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,799 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,800 INFO L274 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-16(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-18(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-19(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-20(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-22(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-23(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,801 INFO L274 CegarLoopResult]: For program point L16-24(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,802 INFO L274 CegarLoopResult]: For program point L16-26(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,802 INFO L274 CegarLoopResult]: For program point L16-27(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,802 INFO L274 CegarLoopResult]: For program point L16-28(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,802 INFO L274 CegarLoopResult]: For program point L16-30(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,802 INFO L274 CegarLoopResult]: For program point L16-31(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,802 INFO L274 CegarLoopResult]: For program point L16-32(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L16-34(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L16-35(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L16-36(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L397-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L16-38(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L16-39(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,803 INFO L274 CegarLoopResult]: For program point L16-40(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,804 INFO L274 CegarLoopResult]: For program point L16-42(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,804 INFO L274 CegarLoopResult]: For program point L16-43(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,804 INFO L274 CegarLoopResult]: For program point L16-44(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,804 INFO L274 CegarLoopResult]: For program point L16-46(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,804 INFO L274 CegarLoopResult]: For program point L16-47(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,804 INFO L274 CegarLoopResult]: For program point L16-48(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,805 INFO L274 CegarLoopResult]: For program point L16-50(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,805 INFO L274 CegarLoopResult]: For program point L16-51(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,805 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:58:14,805 INFO L274 CegarLoopResult]: For program point L398-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 21:58:14,805 INFO L274 CegarLoopResult]: For program point L2(line 387) no Hoare annotation was computed. [2020-10-24 21:58:14,813 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:58:14,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:58:14,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:58:14 BoogieIcfgContainer [2020-10-24 21:58:14,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:58:14,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:58:14,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:58:14,825 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:58:14,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:29" (3/4) ... [2020-10-24 21:58:14,829 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:58:14,843 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-24 21:58:14,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 21:58:14,844 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:58:14,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:58:14,877 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2020-10-24 21:58:14,916 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:58:14,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:58:14,918 INFO L168 Benchmark]: Toolchain (without parser) took 51079.70 ms. Allocated memory was 48.2 MB in the beginning and 73.4 MB in the end (delta: 25.2 MB). Free memory was 23.0 MB in the beginning and 40.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:14,919 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 29.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:14,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1099.17 ms. Allocated memory was 48.2 MB in the beginning and 73.4 MB in the end (delta: 25.2 MB). Free memory was 22.3 MB in the beginning and 35.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:14,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.17 ms. Allocated memory is still 73.4 MB. Free memory was 35.5 MB in the beginning and 32.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:14,921 INFO L168 Benchmark]: Boogie Preprocessor took 71.73 ms. Allocated memory is still 73.4 MB. Free memory was 32.8 MB in the beginning and 53.7 MB in the end (delta: -20.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:14,921 INFO L168 Benchmark]: RCFGBuilder took 4710.12 ms. Allocated memory is still 73.4 MB. Free memory was 53.7 MB in the beginning and 32.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:14,922 INFO L168 Benchmark]: TraceAbstraction took 45016.28 ms. Allocated memory is still 73.4 MB. Free memory was 32.2 MB in the beginning and 45.3 MB in the end (delta: -13.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:14,922 INFO L168 Benchmark]: Witness Printer took 91.95 ms. Allocated memory is still 73.4 MB. Free memory was 45.3 MB in the beginning and 40.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:14,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 29.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1099.17 ms. Allocated memory was 48.2 MB in the beginning and 73.4 MB in the end (delta: 25.2 MB). Free memory was 22.3 MB in the beginning and 35.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.17 ms. Allocated memory is still 73.4 MB. Free memory was 35.5 MB in the beginning and 32.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.73 ms. Allocated memory is still 73.4 MB. Free memory was 32.8 MB in the beginning and 53.7 MB in the end (delta: -20.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4710.12 ms. Allocated memory is still 73.4 MB. Free memory was 53.7 MB in the beginning and 32.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 45016.28 ms. Allocated memory is still 73.4 MB. Free memory was 32.2 MB in the beginning and 45.3 MB in the end (delta: -13.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 91.95 ms. Allocated memory is still 73.4 MB. Free memory was 45.3 MB in the beginning and 40.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant [2020-10-24 21:58:14,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 21:58:14,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 28.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 305 SDslu, 105 SDs, 0 SdLazy, 196 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 151 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 178 ConstructedInterpolants, 27 QuantifiedInterpolants, 19233 SizeOfPredicates, 34 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...