./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 ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-ee8e70e [2020-10-24 14:16:14,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:14,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:14,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:14,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:14,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:14,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:14,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:14,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:14,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:14,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:14,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:14,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:14,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:14,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:14,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:14,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:14,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:14,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:14,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:14,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:14,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:14,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:14,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:14,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:14,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:14,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:14,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:14,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:14,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:14,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:14,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:14,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:14,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:14,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:14,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:14,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:14,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:14,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:14,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:14,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:14,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:16:14,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:14,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:14,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:14,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:14,302 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:14,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:14,302 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:14,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:16:14,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:14,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:14,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:14,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:14,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:14,304 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:14,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:14,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:14,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:14,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:14,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:14,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:14,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:14,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:14,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:14,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:14,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:14,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:16:14,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:16:14,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:14,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:14,307 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-24 14:16:14,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:14,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:14,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:14,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:14,765 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:14,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 14:16:14,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc809f650/7a8256837fe8404cb159eb3f1c7d0d6c/FLAG4fdbd5915 [2020-10-24 14:16:15,610 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:15,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 14:16:15,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc809f650/7a8256837fe8404cb159eb3f1c7d0d6c/FLAG4fdbd5915 [2020-10-24 14:16:15,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc809f650/7a8256837fe8404cb159eb3f1c7d0d6c [2020-10-24 14:16:15,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:15,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:15,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:15,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:15,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:15,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:15,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5e23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15, skipping insertion in model container [2020-10-24 14:16:15,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:15,881 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:15,922 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:16,700 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:847) 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:1400) 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:1079) 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:2341) 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:704) 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:2341) 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:2341) 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:1568) 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:1044) 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:1422) 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:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) 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:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) 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 14:16:16,712 INFO L168 Benchmark]: Toolchain (without parser) took 855.83 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.2 MB in the beginning and 36.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:16,715 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 44.0 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:16,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.01 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 36.4 MB in the end (delta: -8.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:16,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 44.0 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 847.01 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 36.4 MB in the end (delta: -8.9 MB). Peak memory consumption was 11.3 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:847) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:19,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:19,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:19,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:19,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:19,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:19,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:19,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:19,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:19,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:19,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:19,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:19,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:19,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:19,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:19,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:19,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:19,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:19,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:19,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:19,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:19,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:19,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:19,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:19,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:19,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:19,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:19,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:19,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:19,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:19,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:19,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:19,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:19,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:19,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:19,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:19,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:19,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:19,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:19,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:19,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:19,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:16:19,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:19,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:19,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:19,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:19,455 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:19,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:19,456 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:19,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:19,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:19,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:19,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:19,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:19,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:16:19,462 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:16:19,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:19,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:19,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:19,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:19,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:19,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:19,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:19,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:19,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:19,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:19,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:19,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:19,469 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:16:19,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:16:19,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:19,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:19,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:16:19,470 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-10-24 14:16:19,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:19,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:19,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:19,954 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:19,955 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:19,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 14:16:20,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a34b782c/2fba4e6d1c204a38a78a7fb159b360eb/FLAG250912e82 [2020-10-24 14:16:20,767 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:20,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-10-24 14:16:20,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a34b782c/2fba4e6d1c204a38a78a7fb159b360eb/FLAG250912e82 [2020-10-24 14:16:20,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a34b782c/2fba4e6d1c204a38a78a7fb159b360eb [2020-10-24 14:16:20,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:21,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:21,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:21,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:21,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:21,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:20" (1/1) ... [2020-10-24 14:16:21,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a79833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:21, skipping insertion in model container [2020-10-24 14:16:21,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:20" (1/1) ... [2020-10-24 14:16:21,062 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:21,162 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:21,931 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:21,973 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:16:22,019 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:22,379 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:16:22,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22 WrapperNode [2020-10-24 14:16:22,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:22,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:22,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:16:22,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:16:22,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:22,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:16:22,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:16:22,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:16:22,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:16:22,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:16:22,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:16:22,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:16:22,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 14:16:22,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:16:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:16:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:16:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:16:22,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:22,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:16:24,993 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:24,993 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-24 14:16:24,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:24 BoogieIcfgContainer [2020-10-24 14:16:24,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:24,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:24,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:25,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:25,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:16:20" (1/3) ... [2020-10-24 14:16:25,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae494d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:25, skipping insertion in model container [2020-10-24 14:16:25,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (2/3) ... [2020-10-24 14:16:25,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae494d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:25, skipping insertion in model container [2020-10-24 14:16:25,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:24" (3/3) ... [2020-10-24 14:16:25,005 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2020-10-24 14:16:25,018 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:25,024 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-24 14:16:25,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-24 14:16:25,081 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:25,081 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:25,082 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:25,082 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:25,082 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:25,082 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:25,082 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:25,082 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-10-24 14:16:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:16:25,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:25,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:16:25,110 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 14:16:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:25,117 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-10-24 14:16:25,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:25,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501176261] [2020-10-24 14:16:25,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:25,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:16:25,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:25,397 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 14:16:25,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:25,584 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 6 [2020-10-24 14:16:25,620 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 14:16:25,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501176261] [2020-10-24 14:16:25,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:25,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:25,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267715554] [2020-10-24 14:16:25,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:25,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:25,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:25,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:25,666 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2020-10-24 14:16:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:27,756 INFO L93 Difference]: Finished difference Result 151 states and 205 transitions. [2020-10-24 14:16:27,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:27,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-24 14:16:27,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:27,791 INFO L225 Difference]: With dead ends: 151 [2020-10-24 14:16:27,791 INFO L226 Difference]: Without dead ends: 65 [2020-10-24 14:16:27,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:27,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-24 14:16:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-24 14:16:27,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-24 14:16:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 64 transitions. [2020-10-24 14:16:27,836 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 64 transitions. Word has length 5 [2020-10-24 14:16:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:27,837 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 64 transitions. [2020-10-24 14:16:27,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 64 transitions. [2020-10-24 14:16:27,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:16:27,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:27,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:28,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:16:28,052 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 14:16:28,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:28,054 INFO L82 PathProgramCache]: Analyzing trace with hash 442954858, now seen corresponding path program 1 times [2020-10-24 14:16:28,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:28,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413030206] [2020-10-24 14:16:28,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:28,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:28,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:28,785 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-10-24 14:16:28,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:28,863 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 14:16:28,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:28,979 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,981 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,982 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,984 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,985 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,988 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,990 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,994 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:28,997 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:29,008 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:29,010 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:29,132 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 14:16:29,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413030206] [2020-10-24 14:16:29,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:29,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 14:16:29,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697685278] [2020-10-24 14:16:29,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:16:29,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:29,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:16:29,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 14:16:29,137 INFO L87 Difference]: Start difference. First operand 65 states and 64 transitions. Second operand 8 states. [2020-10-24 14:16:32,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:32,184 INFO L93 Difference]: Finished difference Result 65 states and 64 transitions. [2020-10-24 14:16:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:16:32,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-10-24 14:16:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:32,188 INFO L225 Difference]: With dead ends: 65 [2020-10-24 14:16:32,188 INFO L226 Difference]: Without dead ends: 62 [2020-10-24 14:16:32,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:16:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-24 14:16:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-24 14:16:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-24 14:16:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 61 transitions. [2020-10-24 14:16:32,197 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 61 transitions. Word has length 8 [2020-10-24 14:16:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:32,198 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 61 transitions. [2020-10-24 14:16:32,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:16:32,198 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 61 transitions. [2020-10-24 14:16:32,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 14:16:32,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:32,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:32,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:16:32,414 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 14:16:32,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:32,417 INFO L82 PathProgramCache]: Analyzing trace with hash 847036503, now seen corresponding path program 1 times [2020-10-24 14:16:32,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:32,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836966730] [2020-10-24 14:16:32,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:32,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:16:32,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:32,525 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 14:16:32,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:32,593 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 14:16:32,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836966730] [2020-10-24 14:16:32,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:32,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:32,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972594004] [2020-10-24 14:16:32,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:32,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:32,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:32,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:32,596 INFO L87 Difference]: Start difference. First operand 62 states and 61 transitions. Second operand 4 states. [2020-10-24 14:16:34,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:34,627 INFO L93 Difference]: Finished difference Result 62 states and 61 transitions. [2020-10-24 14:16:34,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:34,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-24 14:16:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:34,629 INFO L225 Difference]: With dead ends: 62 [2020-10-24 14:16:34,630 INFO L226 Difference]: Without dead ends: 59 [2020-10-24 14:16:34,630 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 14:16:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-24 14:16:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-24 14:16:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-24 14:16:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 58 transitions. [2020-10-24 14:16:34,637 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 58 transitions. Word has length 9 [2020-10-24 14:16:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:34,637 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 58 transitions. [2020-10-24 14:16:34,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:34,638 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 58 transitions. [2020-10-24 14:16:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 14:16:34,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:34,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:34,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:16:34,855 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 14:16:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:34,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1454326907, now seen corresponding path program 1 times [2020-10-24 14:16:34,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:34,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264807872] [2020-10-24 14:16:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:34,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:34,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:36,140 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 104 DAG size of output: 25 [2020-10-24 14:16:36,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:16:36,243 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 14:16:36,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:37,098 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-10-24 14:16:38,854 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-10-24 14:16:38,880 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 14:16:38,881 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,883 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 14:16:38,884 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,886 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 14:16:38,887 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,889 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,890 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,894 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,894 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,896 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,896 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,898 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,899 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,900 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:16:38,901 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,910 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,911 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,914 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:16:38,914 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,916 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,917 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,918 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,919 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,920 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:16:38,920 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,922 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,923 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,926 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:16:38,926 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,932 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,933 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,936 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,937 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,939 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,939 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,941 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,942 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,944 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,944 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,946 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:16:38,946 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,948 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 14:16:38,949 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,949 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:16:38,950 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-24 14:16:38,951 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-24 14:16:38,951 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-24 14:16:38,953 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-24 14:16:42,243 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-10-24 14:16:42,308 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 14:16:42,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264807872] [2020-10-24 14:16:42,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:42,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 14:16:42,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218342248] [2020-10-24 14:16:42,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:16:42,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:42,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:16:42,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 14:16:42,311 INFO L87 Difference]: Start difference. First operand 59 states and 58 transitions. Second operand 8 states. [2020-10-24 14:16:46,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:46,005 INFO L93 Difference]: Finished difference Result 59 states and 58 transitions. [2020-10-24 14:16:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:16:46,011 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-24 14:16:46,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:46,012 INFO L225 Difference]: With dead ends: 59 [2020-10-24 14:16:46,012 INFO L226 Difference]: Without dead ends: 56 [2020-10-24 14:16:46,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:16:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-24 14:16:46,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-24 14:16:46,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-24 14:16:46,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 55 transitions. [2020-10-24 14:16:46,024 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 55 transitions. Word has length 12 [2020-10-24 14:16:46,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:46,024 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 55 transitions. [2020-10-24 14:16:46,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:16:46,024 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 55 transitions. [2020-10-24 14:16:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 14:16:46,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:46,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:46,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 14:16:46,229 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 14:16:46,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:46,232 INFO L82 PathProgramCache]: Analyzing trace with hash 2134798987, now seen corresponding path program 1 times [2020-10-24 14:16:46,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:46,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525008946] [2020-10-24 14:16:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:46,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:46,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:46,366 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 14:16:46,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:46,402 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 14:16:46,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525008946] [2020-10-24 14:16:46,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:46,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:46,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913283213] [2020-10-24 14:16:46,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:46,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:46,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:46,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:46,405 INFO L87 Difference]: Start difference. First operand 56 states and 55 transitions. Second operand 4 states. [2020-10-24 14:16:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:48,263 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2020-10-24 14:16:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:48,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-24 14:16:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:48,268 INFO L225 Difference]: With dead ends: 56 [2020-10-24 14:16:48,268 INFO L226 Difference]: Without dead ends: 53 [2020-10-24 14:16:48,269 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 14:16:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-24 14:16:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-24 14:16:48,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-24 14:16:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2020-10-24 14:16:48,278 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 13 [2020-10-24 14:16:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:48,278 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2020-10-24 14:16:48,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2020-10-24 14:16:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 14:16:48,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:48,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:48,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 14:16:48,482 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 14:16:48,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:48,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1442131111, now seen corresponding path program 1 times [2020-10-24 14:16:48,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:48,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775771042] [2020-10-24 14:16:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:48,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:48,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:49,062 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-24 14:16:49,077 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 14:16:49,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:51,503 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-10-24 14:16:51,558 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 14:16:51,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775771042] [2020-10-24 14:16:51,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:51,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:51,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827745339] [2020-10-24 14:16:51,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:51,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:51,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:51,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:51,561 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand 6 states. [2020-10-24 14:16:53,062 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-10-24 14:16:57,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:57,628 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2020-10-24 14:16:57,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:57,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-24 14:16:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:57,643 INFO L225 Difference]: With dead ends: 53 [2020-10-24 14:16:57,643 INFO L226 Difference]: Without dead ends: 50 [2020-10-24 14:16:57,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:57,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-24 14:16:57,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-24 14:16:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-24 14:16:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2020-10-24 14:16:57,647 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 15 [2020-10-24 14:16:57,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:57,648 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2020-10-24 14:16:57,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2020-10-24 14:16:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 14:16:57,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:57,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:57,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 14:16:57,851 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 14:16:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:57,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1396849319, now seen corresponding path program 1 times [2020-10-24 14:16:57,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:57,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264571540] [2020-10-24 14:16:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:57,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:16:57,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:58,305 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 14:16:58,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:59,299 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 14:16:59,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264571540] [2020-10-24 14:16:59,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:59,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:59,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416173117] [2020-10-24 14:16:59,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:59,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:59,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:59,310 INFO L87 Difference]: Start difference. First operand 50 states and 49 transitions. Second operand 6 states. [2020-10-24 14:17:00,782 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2020-10-24 14:17:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:04,071 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2020-10-24 14:17:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:17:04,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-24 14:17:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:04,084 INFO L225 Difference]: With dead ends: 50 [2020-10-24 14:17:04,084 INFO L226 Difference]: Without dead ends: 47 [2020-10-24 14:17:04,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:17:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-24 14:17:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-24 14:17:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-24 14:17:04,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 46 transitions. [2020-10-24 14:17:04,089 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 46 transitions. Word has length 17 [2020-10-24 14:17:04,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:04,089 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 46 transitions. [2020-10-24 14:17:04,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:17:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 46 transitions. [2020-10-24 14:17:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 14:17:04,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:04,090 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 14:17:04,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-24 14:17:04,298 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 14:17:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:04,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1942157195, now seen corresponding path program 1 times [2020-10-24 14:17:04,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:04,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773572578] [2020-10-24 14:17:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:17:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:04,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:17:04,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:04,650 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 14:17:04,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:05,351 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 14:17:05,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773572578] [2020-10-24 14:17:05,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:05,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:17:05,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362039565] [2020-10-24 14:17:05,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:17:05,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:05,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:17:05,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:17:05,354 INFO L87 Difference]: Start difference. First operand 47 states and 46 transitions. Second operand 6 states. [2020-10-24 14:17:06,523 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2020-10-24 14:17:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:09,857 INFO L93 Difference]: Finished difference Result 47 states and 46 transitions. [2020-10-24 14:17:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:17:09,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-24 14:17:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:09,870 INFO L225 Difference]: With dead ends: 47 [2020-10-24 14:17:09,870 INFO L226 Difference]: Without dead ends: 44 [2020-10-24 14:17:09,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:17:09,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-24 14:17:09,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-24 14:17:09,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-24 14:17:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2020-10-24 14:17:09,883 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 19 [2020-10-24 14:17:09,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:09,883 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2020-10-24 14:17:09,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:17:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2020-10-24 14:17:09,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-24 14:17:09,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:09,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:10,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-24 14:17:10,086 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 14:17:10,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:10,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1908120771, now seen corresponding path program 1 times [2020-10-24 14:17:10,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:10,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742211775] [2020-10-24 14:17:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:10,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:17:10,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:10,916 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 14:17:10,921 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 14:17:10,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:12,820 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-10-24 14:17:13,031 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 14:17:13,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742211775] [2020-10-24 14:17:13,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:13,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 14:17:13,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474144394] [2020-10-24 14:17:13,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 14:17:13,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:13,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 14:17:13,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:17:13,033 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 7 states. [2020-10-24 14:17:19,479 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2020-10-24 14:17:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:23,714 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-10-24 14:17:23,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:17:23,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-24 14:17:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:23,729 INFO L225 Difference]: With dead ends: 44 [2020-10-24 14:17:23,729 INFO L226 Difference]: Without dead ends: 41 [2020-10-24 14:17:23,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-24 14:17:23,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-24 14:17:23,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-24 14:17:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 14:17:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2020-10-24 14:17:23,732 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 21 [2020-10-24 14:17:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:23,732 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2020-10-24 14:17:23,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 14:17:23,733 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2020-10-24 14:17:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-24 14:17:23,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:23,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:23,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-24 14:17:23,942 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 14:17:23,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:23,943 INFO L82 PathProgramCache]: Analyzing trace with hash -236562543, now seen corresponding path program 1 times [2020-10-24 14:17:23,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:23,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909094591] [2020-10-24 14:17:23,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:24,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:17:24,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:24,804 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 14:17:24,809 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 14:17:24,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:27,045 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-10-24 14:17:27,443 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 14:17:27,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909094591] [2020-10-24 14:17:27,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:27,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 14:17:27,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486472560] [2020-10-24 14:17:27,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 14:17:27,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:27,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 14:17:27,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:17:27,446 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand 7 states. [2020-10-24 14:17:31,514 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2020-10-24 14:17:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:36,464 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2020-10-24 14:17:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:17:36,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-24 14:17:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:36,478 INFO L225 Difference]: With dead ends: 41 [2020-10-24 14:17:36,478 INFO L226 Difference]: Without dead ends: 38 [2020-10-24 14:17:36,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-24 14:17:36,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-24 14:17:36,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-24 14:17:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-24 14:17:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2020-10-24 14:17:36,482 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 23 [2020-10-24 14:17:36,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:36,483 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2020-10-24 14:17:36,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 14:17:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-10-24 14:17:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-24 14:17:36,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:36,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:36,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-24 14:17:36,694 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 14:17:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:36,695 INFO L82 PathProgramCache]: Analyzing trace with hash 307075295, now seen corresponding path program 1 times [2020-10-24 14:17:36,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:36,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893679001] [2020-10-24 14:17:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:37,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 14:17:37,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:38,974 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-24 14:17:38,984 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 14:17:38,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:43,511 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet101_19| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet103_19| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet100_16| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet102_16| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet100_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet100_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet100_16|))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~v~0) ((_ extract 62 52) c_ULTIMATE.start_main_~v~0) ((_ extract 51 0) c_ULTIMATE.start_main_~v~0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet102_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet102_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet102_16|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet101_19|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet101_19|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet101_19|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet103_19|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet103_19|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet103_19|)))) (or (not (= .cse0 (fp.sub c_~CRM .cse1 .cse2))) (not (= .cse3 ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~largestSubnormalFloat~0) ((_ extract 30 23) c_ULTIMATE.start_main_~largestSubnormalFloat~0) ((_ extract 22 0) c_ULTIMATE.start_main_~largestSubnormalFloat~0))))) (not (= ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~smallestNormalFloat~0) ((_ extract 30 23) c_ULTIMATE.start_main_~smallestNormalFloat~0) ((_ extract 22 0) c_ULTIMATE.start_main_~smallestNormalFloat~0))) .cse1)) (not (= .cse4 (fp.sub c_~CRM .cse2 .cse3))) (fp.leq .cse0 .cse4)))) is different from true [2020-10-24 14:17:44,412 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 14:17:44,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893679001] [2020-10-24 14:17:44,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:44,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 14:17:44,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442920651] [2020-10-24 14:17:44,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 14:17:44,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:44,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 14:17:44,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2020-10-24 14:17:44,414 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 7 states. [2020-10-24 14:17:51,409 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification that was a NOOP. DAG size: 64 [2020-10-24 14:17:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:55,825 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-10-24 14:17:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:17:55,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-24 14:17:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:55,840 INFO L225 Difference]: With dead ends: 38 [2020-10-24 14:17:55,840 INFO L226 Difference]: Without dead ends: 35 [2020-10-24 14:17:55,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2020-10-24 14:17:55,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-24 14:17:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-24 14:17:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-24 14:17:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-10-24 14:17:55,844 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 25 [2020-10-24 14:17:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:55,844 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-10-24 14:17:55,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 14:17:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-10-24 14:17:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-24 14:17:55,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:55,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:56,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-24 14:17:56,048 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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 14:17:56,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:56,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1242971987, now seen corresponding path program 1 times [2020-10-24 14:17:56,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:56,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511210907] [2020-10-24 14:17:56,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-24 14:17:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:56,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:17:56,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:57,131 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-24 14:17:57,143 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 14:17:57,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:58,428 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-10-24 14:17:59,480 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 14:17:59,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511210907] [2020-10-24 14:17:59,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:59,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 14:17:59,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163648822] [2020-10-24 14:17:59,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:17:59,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:59,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:17:59,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-24 14:17:59,485 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 8 states. [2020-10-24 14:18:08,875 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-10-24 14:18:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:09,247 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-10-24 14:18:09,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:18:09,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-10-24 14:18:09,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:09,260 INFO L225 Difference]: With dead ends: 35 [2020-10-24 14:18:09,260 INFO L226 Difference]: Without dead ends: 32 [2020-10-24 14:18:09,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:18:09,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-24 14:18:09,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-24 14:18:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-24 14:18:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2020-10-24 14:18:09,263 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 27 [2020-10-24 14:18:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:09,263 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2020-10-24 14:18:09,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:18:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-10-24 14:18:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-24 14:18:09,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:18:09,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:18:09,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-24 14:18:09,468 INFO L429 AbstractCegarLoop]: === Iteration 13 === [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 14:18:09,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:18:09,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1993918976, now seen corresponding path program 1 times [2020-10-24 14:18:09,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:18:09,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605408125] [2020-10-24 14:18:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-24 14:18:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:18:09,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 14:18:09,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:18:11,427 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 76 DAG size of output: 19 [2020-10-24 14:18:11,430 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:18:13,085 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 24 [2020-10-24 14:18:14,053 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 14:18:14,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:18:20,593 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-10-24 14:18:27,680 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-10-24 14:18:27,690 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 14:18:27,691 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,692 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 14:18:27,693 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,694 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 14:18:27,695 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,696 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,696 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,697 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,698 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,699 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,699 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,700 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,701 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,702 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:18:27,702 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,704 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 14:18:27,705 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,706 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 14:18:27,707 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,711 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,711 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,713 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,713 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,715 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,715 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,716 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 14:18:27,717 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,718 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 14:18:27,718 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 14:18:27,729 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-24 14:18:27,730 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-24 14:18:27,732 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-24 14:18:27,733 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-24 14:18:29,755 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet107_21| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet106_18| (_ BitVec 64)) (v_ULTIMATE.start_main_~f~0_46 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet106_18|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet106_18|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet106_18|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet107_21|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet107_21|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet107_21|))) (.cse1 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~f~0_46) ((_ extract 30 23) v_ULTIMATE.start_main_~f~0_46) ((_ extract 22 0) v_ULTIMATE.start_main_~f~0_46)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM .cse1))) (fp.isNaN .cse1) (not (fp.isSubnormal .cse1)) (not (= .cse2 ((_ to_fp 8 24) c_~CRM .cse0))) (fp.isInfinite .cse1) (fp.eq .cse2 .cse1) (fp.isNormal .cse1)))) is different from false [2020-10-24 14:18:30,660 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 14:18:30,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605408125] [2020-10-24 14:18:30,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:18:30,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 14:18:30,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640608814] [2020-10-24 14:18:30,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 14:18:30,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:18:30,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 14:18:30,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:18:30,662 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 9 states. [2020-10-24 14:18:31,959 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2020-10-24 14:18:37,072 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 32 [2020-10-24 14:18:39,403 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-24 14:18:56,023 WARN L193 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-10-24 14:18:56,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:56,028 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-10-24 14:18:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 14:18:56,029 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-24 14:18:56,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:56,029 INFO L225 Difference]: With dead ends: 32 [2020-10-24 14:18:56,029 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:18:56,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-10-24 14:18:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:18:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:18:56,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:18:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:18:56,031 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-10-24 14:18:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:56,031 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:18:56,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 14:18:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:18:56,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:18:56,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-24 14:18:56,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:18:56,295 INFO L274 CegarLoopResult]: For program point L2-1(line 391) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point L2-2(lines 2 4) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point L399(line 399) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point L399-2(line 399) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-10-24 14:18:56,296 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:18:56,297 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-10-24 14:18:56,297 INFO L274 CegarLoopResult]: For program point L384-2(line 384) no Hoare annotation was computed. [2020-10-24 14:18:56,297 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,297 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,298 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-10-24 14:18:56,298 INFO L274 CegarLoopResult]: For program point L402-2(line 402) no Hoare annotation was computed. [2020-10-24 14:18:56,298 INFO L270 CegarLoopResult]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((~CRM RoundingMode)) (= ((_ to_fp 8 24) ~CRM (/ 8388607.0 713623846352979940529142984724747568191373312.0)) (fp ((_ extract 31 31) ULTIMATE.start_main_~largestSubnormalFloat~0) ((_ extract 30 23) ULTIMATE.start_main_~largestSubnormalFloat~0) ((_ extract 22 0) ULTIMATE.start_main_~largestSubnormalFloat~0)))) [2020-10-24 14:18:56,298 INFO L274 CegarLoopResult]: For program point L387-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 14:18:56,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,298 INFO L274 CegarLoopResult]: For program point L388-1(line 388) no Hoare annotation was computed. [2020-10-24 14:18:56,298 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:18:56,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,299 INFO L274 CegarLoopResult]: For program point L391-1(lines 379 404) no Hoare annotation was computed. [2020-10-24 14:18:56,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:18:56,300 INFO L274 CegarLoopResult]: For program point L392-1(line 392) no Hoare annotation was computed. [2020-10-24 14:18:56,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,300 INFO L274 CegarLoopResult]: For program point L393(line 393) no Hoare annotation was computed. [2020-10-24 14:18:56,300 INFO L274 CegarLoopResult]: For program point L393-2(line 393) no Hoare annotation was computed. [2020-10-24 14:18:56,300 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-24 14:18:56,301 INFO L274 CegarLoopResult]: For program point L394-2(line 394) no Hoare annotation was computed. [2020-10-24 14:18:56,301 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,301 INFO L274 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-24 14:18:56,301 INFO L274 CegarLoopResult]: For program point L395-2(line 395) no Hoare annotation was computed. [2020-10-24 14:18:56,301 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:18:56,301 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,302 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,302 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,302 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,302 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,302 INFO L274 CegarLoopResult]: For program point L396(line 396) no Hoare annotation was computed. [2020-10-24 14:18:56,302 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,303 INFO L274 CegarLoopResult]: For program point L396-2(line 396) no Hoare annotation was computed. [2020-10-24 14:18:56,303 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,303 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,303 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,303 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,303 INFO L274 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,304 INFO L274 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,304 INFO L274 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,304 INFO L274 CegarLoopResult]: For program point L16-16(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,304 INFO L274 CegarLoopResult]: For program point L16-18(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,304 INFO L274 CegarLoopResult]: For program point L16-19(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,304 INFO L274 CegarLoopResult]: For program point L16-20(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,305 INFO L274 CegarLoopResult]: For program point L16-22(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,305 INFO L274 CegarLoopResult]: For program point L16-23(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,305 INFO L274 CegarLoopResult]: For program point L16-24(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,305 INFO L274 CegarLoopResult]: For program point L16-26(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,305 INFO L274 CegarLoopResult]: For program point L16-27(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,305 INFO L274 CegarLoopResult]: For program point L16-28(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L16-30(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L16-31(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L16-32(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L16-34(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L16-35(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-24 14:18:56,306 INFO L274 CegarLoopResult]: For program point L16-36(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,307 INFO L274 CegarLoopResult]: For program point L397-2(line 397) no Hoare annotation was computed. [2020-10-24 14:18:56,307 INFO L274 CegarLoopResult]: For program point L16-38(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,307 INFO L274 CegarLoopResult]: For program point L16-39(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,307 INFO L274 CegarLoopResult]: For program point L16-40(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,307 INFO L274 CegarLoopResult]: For program point L16-42(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,307 INFO L274 CegarLoopResult]: For program point L16-43(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,308 INFO L274 CegarLoopResult]: For program point L16-44(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,308 INFO L274 CegarLoopResult]: For program point L16-46(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,308 INFO L274 CegarLoopResult]: For program point L16-47(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,308 INFO L274 CegarLoopResult]: For program point L16-48(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,308 INFO L274 CegarLoopResult]: For program point L16-50(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,308 INFO L274 CegarLoopResult]: For program point L16-51(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,309 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 14:18:56,309 INFO L274 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-24 14:18:56,309 INFO L274 CegarLoopResult]: For program point L398-2(line 398) no Hoare annotation was computed. [2020-10-24 14:18:56,309 INFO L274 CegarLoopResult]: For program point L2(line 387) no Hoare annotation was computed. [2020-10-24 14:18:56,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[~CRM,QUANTIFIED] [2020-10-24 14:18:56,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[~CRM,QUANTIFIED] [2020-10-24 14:18:56,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:18:56 BoogieIcfgContainer [2020-10-24 14:18:56,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:18:56,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:18:56,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:18:56,335 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:18:56,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:24" (3/4) ... [2020-10-24 14:18:56,340 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:18:56,359 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-24 14:18:56,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:18:56,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:56,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:56,405 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ~CRM : FloatRoundingMode :: ~to_fp~LONGDOUBLE(~CRM, 8388607/713623846352979940529142984724747568191373312) == ~fp~LONGDOUBLE(largestSubnormalFloat[31:31], largestSubnormalFloat[30:23], largestSubnormalFloat[22:0])) [2020-10-24 14:18:56,472 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:18:56,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:18:56,474 INFO L168 Benchmark]: Toolchain (without parser) took 155473.19 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 22.1 MB in the beginning and 43.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,474 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:56,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1370.05 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 25.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.77 ms. Allocated memory is still 56.6 MB. Free memory was 25.1 MB in the beginning and 21.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,476 INFO L168 Benchmark]: Boogie Preprocessor took 52.79 ms. Allocated memory is still 56.6 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,476 INFO L168 Benchmark]: RCFGBuilder took 2472.63 ms. Allocated memory is still 56.6 MB. Free memory was 20.1 MB in the beginning and 15.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,477 INFO L168 Benchmark]: TraceAbstraction took 151337.00 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 15.2 MB in the beginning and 19.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,477 INFO L168 Benchmark]: Witness Printer took 137.66 ms. Allocated memory is still 69.2 MB. Free memory was 19.6 MB in the beginning and 43.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:56,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1370.05 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 25.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.77 ms. Allocated memory is still 56.6 MB. Free memory was 25.1 MB in the beginning and 21.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.79 ms. Allocated memory is still 56.6 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2472.63 ms. Allocated memory is still 56.6 MB. Free memory was 20.1 MB in the beginning and 15.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 151337.00 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 15.2 MB in the beginning and 19.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Witness Printer took 137.66 ms. Allocated memory is still 69.2 MB. Free memory was 19.6 MB in the beginning and 43.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 2.1 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[~CRM,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[~CRM,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 14:18:56,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[~CRM,QUANTIFIED] [2020-10-24 14:18:56,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[~CRM,QUANTIFIED] Derived loop invariant: (\exists ~CRM : FloatRoundingMode :: ~to_fp~LONGDOUBLE(~CRM, 8388607/713623846352979940529142984724747568191373312) == ~fp~LONGDOUBLE(largestSubnormalFloat[31:31], largestSubnormalFloat[30:23], largestSubnormalFloat[22:0])) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 151.1s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 94.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 396 SDtfs, 880 SDslu, 448 SDs, 0 SdLazy, 542 SolverSat, 21 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 70.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 439 GetRequests, 363 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 69.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred 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, 13 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 12 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 51.4s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 424 ConstructedInterpolants, 150 QuantifiedInterpolants, 221831 SizeOfPredicates, 54 NumberOfNonLiveVariables, 545 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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...