./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 356e353e7bb6e96bd959fe4862b56669bada9c19 .................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 356e353e7bb6e96bd959fe4862b56669bada9c19 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:38:29,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:38:29,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:38:29,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:38:29,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:38:29,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:38:29,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:38:29,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:38:29,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:38:29,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:38:29,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:38:29,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:38:29,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:38:29,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:38:29,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:38:29,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:38:29,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:38:29,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:38:29,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:38:29,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:38:29,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:38:29,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:38:29,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:38:29,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:38:29,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:38:29,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:38:29,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:38:29,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:38:29,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:38:29,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:38:29,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:38:29,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:38:29,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:38:29,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:38:30,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:38:30,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:38:30,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:38:30,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:38:30,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:38:30,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:38:30,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:38:30,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:38:30,046 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:38:30,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:38:30,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:38:30,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:38:30,051 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:38:30,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:38:30,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:38:30,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:38:30,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:38:30,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:38:30,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:38:30,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:38:30,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:38:30,056 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:38:30,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:38:30,057 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:38:30,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:38:30,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:38:30,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:38:30,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:38:30,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:38:30,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:30,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:38:30,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:38:30,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:38:30,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:38:30,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:38:30,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:38:30,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:38:30,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2019-11-28 16:38:30,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:38:30,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:38:30,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:38:30,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:38:30,405 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:38:30,405 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-28 16:38:30,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34cd588b8/d25a5a3387014ff68c0044e1b29e6456/FLAG5944e0eff [2019-11-28 16:38:31,030 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:38:31,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-28 16:38:31,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34cd588b8/d25a5a3387014ff68c0044e1b29e6456/FLAG5944e0eff [2019-11-28 16:38:31,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34cd588b8/d25a5a3387014ff68c0044e1b29e6456 [2019-11-28 16:38:31,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:38:31,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:38:31,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:31,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:38:31,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:38:31,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:31" (1/1) ... [2019-11-28 16:38:31,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b67af4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:31, skipping insertion in model container [2019-11-28 16:38:31,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:31" (1/1) ... [2019-11-28 16:38:31,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:38:31,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:38:32,045 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1064) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:697) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1624) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1336) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1029) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1407) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3458) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:571) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 16:38:32,055 INFO L168 Benchmark]: Toolchain (without parser) took 742.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:32,056 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:32,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:32,060 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 739.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 16:38:33,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:38:33,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:38:33,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:38:33,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:38:33,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:38:33,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:38:33,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:38:33,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:38:33,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:38:33,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:38:33,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:38:33,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:38:33,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:38:33,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:38:33,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:38:33,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:38:33,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:38:33,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:38:33,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:38:33,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:38:33,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:38:33,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:38:33,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:38:33,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:38:33,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:38:33,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:38:33,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:38:33,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:38:33,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:38:33,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:38:33,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:38:33,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:38:33,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:38:34,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:38:34,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:38:34,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:38:34,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:38:34,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:38:34,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:38:34,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:38:34,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:38:34,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:38:34,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:38:34,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:38:34,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:38:34,021 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:38:34,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:38:34,021 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:38:34,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:38:34,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:38:34,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:38:34,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:38:34,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:38:34,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:38:34,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:38:34,023 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:38:34,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:38:34,023 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:38:34,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:38:34,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:38:34,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:38:34,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:38:34,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:38:34,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:34,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:38:34,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:38:34,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:38:34,026 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:38:34,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:38:34,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:38:34,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:38:34,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:38:34,027 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2019-11-28 16:38:34,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:38:34,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:38:34,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:38:34,368 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:38:34,368 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:38:34,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-28 16:38:34,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c535bdbc0/fa4ea6fa0a2b4f61ac19134c5e061523/FLAG032e175f0 [2019-11-28 16:38:35,001 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:38:35,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2019-11-28 16:38:35,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c535bdbc0/fa4ea6fa0a2b4f61ac19134c5e061523/FLAG032e175f0 [2019-11-28 16:38:35,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c535bdbc0/fa4ea6fa0a2b4f61ac19134c5e061523 [2019-11-28 16:38:35,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:38:35,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:38:35,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:35,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:38:35,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:38:35,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:35" (1/1) ... [2019-11-28 16:38:35,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f636103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35, skipping insertion in model container [2019-11-28 16:38:35,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:35" (1/1) ... [2019-11-28 16:38:35,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:38:35,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:38:36,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:38:36,043 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:38:36,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:38:36,410 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:38:36,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36 WrapperNode [2019-11-28 16:38:36,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:38:36,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:38:36,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:38:36,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:38:36,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:38:36,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:38:36,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:38:36,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:38:36,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... [2019-11-28 16:38:36,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:38:36,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:38:36,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:38:36,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:38:36,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:38:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:38:36,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:38:36,982 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:38:36,982 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 16:38:36,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36 BoogieIcfgContainer [2019-11-28 16:38:36,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:38:36,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:38:36,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:38:36,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:38:36,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:38:35" (1/3) ... [2019-11-28 16:38:36,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15525a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:36, skipping insertion in model container [2019-11-28 16:38:36,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:36" (2/3) ... [2019-11-28 16:38:36,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15525a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:36, skipping insertion in model container [2019-11-28 16:38:36,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36" (3/3) ... [2019-11-28 16:38:36,994 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2019-11-28 16:38:37,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:38:37,008 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-28 16:38:37,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-28 16:38:37,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:38:37,044 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:38:37,044 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:38:37,044 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:38:37,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:38:37,045 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:38:37,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:38:37,045 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:38:37,065 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-28 16:38:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:38:37,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:37,073 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:38:37,074 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:37,081 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-28 16:38:37,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:38:37,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865547181] [2019-11-28 16:38:37,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 16:38:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:38:37,171 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:38:37,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:38:37,539 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 2 [2019-11-28 16:38:37,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:37,556 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:38:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:37,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865547181] [2019-11-28 16:38:37,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:38:37,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 16:38:37,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498387111] [2019-11-28 16:38:37,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:38:37,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:38:37,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:38:37,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:37,615 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-11-28 16:38:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:38:37,659 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2019-11-28 16:38:37,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:38:37,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-28 16:38:37,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:38:37,673 INFO L225 Difference]: With dead ends: 75 [2019-11-28 16:38:37,674 INFO L226 Difference]: Without dead ends: 33 [2019-11-28 16:38:37,679 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-28 16:38:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-28 16:38:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-28 16:38:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2019-11-28 16:38:37,723 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 4 [2019-11-28 16:38:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:38:37,723 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2019-11-28 16:38:37,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:38:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2019-11-28 16:38:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 16:38:37,724 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:37,725 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:38:37,938 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:38:37,939 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:37,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:37,940 INFO L82 PathProgramCache]: Analyzing trace with hash 241686798, now seen corresponding path program 1 times [2019-11-28 16:38:37,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:38:37,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762943404] [2019-11-28 16:38:37,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 16:38:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:38:37,975 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:38:37,976 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:38:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:38,001 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:38:38,123 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 3 [2019-11-28 16:38:38,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:38,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762943404] [2019-11-28 16:38:38,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:38:38,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 16:38:38,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470379678] [2019-11-28 16:38:38,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:38:38,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:38:38,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:38:38,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:38,134 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 4 states. [2019-11-28 16:38:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:38:38,160 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2019-11-28 16:38:38,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:38:38,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 16:38:38,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:38:38,162 INFO L225 Difference]: With dead ends: 33 [2019-11-28 16:38:38,162 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 16:38:38,164 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 16:38:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 16:38:38,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 16:38:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2019-11-28 16:38:38,169 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2019-11-28 16:38:38,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:38:38,170 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2019-11-28 16:38:38,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:38:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2019-11-28 16:38:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:38:38,171 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:38,173 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:38:38,385 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:38:38,387 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:38,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:38,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1730276696, now seen corresponding path program 1 times [2019-11-28 16:38:38,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:38:38,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771663314] [2019-11-28 16:38:38,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 16:38:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:38:38,435 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:38:38,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:38:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:38,452 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:38:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:38,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771663314] [2019-11-28 16:38:38,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:38:38,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 16:38:38,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287378112] [2019-11-28 16:38:38,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:38:38,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:38:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:38:38,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:38,547 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 4 states. [2019-11-28 16:38:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:38:38,570 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2019-11-28 16:38:38,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:38:38,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 16:38:38,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:38:38,572 INFO L225 Difference]: With dead ends: 29 [2019-11-28 16:38:38,572 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 16:38:38,573 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:38,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 16:38:38,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 16:38:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 16:38:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-11-28 16:38:38,577 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-11-28 16:38:38,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:38:38,577 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-11-28 16:38:38,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:38:38,578 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-11-28 16:38:38,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:38:38,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:38,579 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:38:38,789 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:38:38,789 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:38,790 INFO L82 PathProgramCache]: Analyzing trace with hash 113862466, now seen corresponding path program 1 times [2019-11-28 16:38:38,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:38:38,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20396953] [2019-11-28 16:38:38,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 16:38:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:38:38,842 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:38:38,844 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:38:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:38,876 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:38:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:38,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20396953] [2019-11-28 16:38:38,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:38:38,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 16:38:38,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889130815] [2019-11-28 16:38:38,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:38:38,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:38:38,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:38:38,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:38,900 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2019-11-28 16:38:38,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:38:38,913 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-11-28 16:38:38,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:38:38,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-28 16:38:38,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:38:38,914 INFO L225 Difference]: With dead ends: 23 [2019-11-28 16:38:38,914 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 16:38:38,915 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:38:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 16:38:38,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 16:38:38,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 16:38:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-28 16:38:38,919 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 15 [2019-11-28 16:38:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:38:38,919 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-28 16:38:38,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:38:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-28 16:38:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 16:38:38,920 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:38:38,920 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:38:39,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 16:38:39,128 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:38:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:38:39,129 INFO L82 PathProgramCache]: Analyzing trace with hash -943331954, now seen corresponding path program 1 times [2019-11-28 16:38:39,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:38:39,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815735917] [2019-11-28 16:38:39,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-28 16:38:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:38:39,178 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:38:39,179 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:38:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:39,210 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:38:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:38:39,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815735917] [2019-11-28 16:38:39,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:38:39,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 16:38:39,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478756922] [2019-11-28 16:38:39,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:38:39,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:38:39,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:38:39,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:38:39,222 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2019-11-28 16:38:39,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:38:39,228 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-28 16:38:39,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:38:39,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-28 16:38:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:38:39,230 INFO L225 Difference]: With dead ends: 19 [2019-11-28 16:38:39,230 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:38:39,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:38:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:38:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:38:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:38:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:38:39,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-28 16:38:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:38:39,232 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:38:39,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:38:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:38:39,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:38:39,433 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 16:38:39,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:38:39,441 INFO L246 CegarLoopResult]: For program point L960(line 960) no Hoare annotation was computed. [2019-11-28 16:38:39,441 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2019-11-28 16:38:39,441 INFO L246 CegarLoopResult]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2019-11-28 16:38:39,441 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2019-11-28 16:38:39,441 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2019-11-28 16:38:39,441 INFO L246 CegarLoopResult]: For program point L961(line 961) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point L961-2(line 961) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point L990(line 990) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point L990-1(line 990) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:38:39,442 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point L953(lines 953 991) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point L974(line 974) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point L974-1(line 974) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2019-11-28 16:38:39,443 INFO L246 CegarLoopResult]: For program point L983(line 983) no Hoare annotation was computed. [2019-11-28 16:38:39,444 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2019-11-28 16:38:39,444 INFO L246 CegarLoopResult]: For program point L983-1(line 983) no Hoare annotation was computed. [2019-11-28 16:38:39,444 INFO L246 CegarLoopResult]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2019-11-28 16:38:39,444 INFO L246 CegarLoopResult]: For program point L975(line 975) no Hoare annotation was computed. [2019-11-28 16:38:39,444 INFO L246 CegarLoopResult]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point L967(line 967) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point L967-1(line 967) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point L959(line 959) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point L959-1(line 959) no Hoare annotation was computed. [2019-11-28 16:38:39,445 INFO L246 CegarLoopResult]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2019-11-28 16:38:39,446 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2019-11-28 16:38:39,446 INFO L246 CegarLoopResult]: For program point L984(line 984) no Hoare annotation was computed. [2019-11-28 16:38:39,446 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2019-11-28 16:38:39,446 INFO L246 CegarLoopResult]: For program point L984-2(line 984) no Hoare annotation was computed. [2019-11-28 16:38:39,446 INFO L246 CegarLoopResult]: For program point L976(line 976) no Hoare annotation was computed. [2019-11-28 16:38:39,446 INFO L246 CegarLoopResult]: For program point L976-2(line 976) no Hoare annotation was computed. [2019-11-28 16:38:39,447 INFO L246 CegarLoopResult]: For program point L968(line 968) no Hoare annotation was computed. [2019-11-28 16:38:39,447 INFO L246 CegarLoopResult]: For program point L968-2(line 968) no Hoare annotation was computed. [2019-11-28 16:38:39,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:38:39 BoogieIcfgContainer [2019-11-28 16:38:39,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:38:39,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:38:39,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:38:39,455 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:38:39,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36" (3/4) ... [2019-11-28 16:38:39,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:38:39,471 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 16:38:39,472 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 16:38:39,472 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:38:39,543 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:38:39,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:38:39,545 INFO L168 Benchmark]: Toolchain (without parser) took 4267.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 952.3 MB in the beginning and 882.1 MB in the end (delta: 70.2 MB). Peak memory consumption was 218.1 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:39,546 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:39,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1133.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -83.4 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:39,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:39,547 INFO L168 Benchmark]: Boogie Preprocessor took 28.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:38:39,548 INFO L168 Benchmark]: RCFGBuilder took 442.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:39,548 INFO L168 Benchmark]: TraceAbstraction took 2468.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 888.7 MB in the end (delta: 129.4 MB). Peak memory consumption was 129.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:39,549 INFO L168 Benchmark]: Witness Printer took 88.37 ms. Allocated memory is still 1.2 GB. Free memory was 888.7 MB in the beginning and 882.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:38:39,552 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1133.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -83.4 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 442.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2468.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 888.7 MB in the end (delta: 129.4 MB). Peak memory consumption was 129.4 MB. Max. memory is 11.5 GB. * Witness Printer took 88.37 ms. Allocated memory is still 1.2 GB. Free memory was 888.7 MB in the beginning and 882.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 974]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 975]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 990]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 967]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 959]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 984]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 11 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 91 SDslu, 42 SDs, 0 SdLazy, 15 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 1662 SizeOfPredicates, 5 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...