./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-div1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43afe140f1d8923ae3cc82938867c285a58a3757 ............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43afe140f1d8923ae3cc82938867c285a58a3757 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:52:58,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:52:58,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:52:58,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:52:58,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:52:58,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:52:58,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:52:58,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:52:58,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:52:58,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:52:58,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:52:58,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:52:58,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:52:58,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:52:58,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:52:58,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:52:58,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:52:58,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:52:58,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:52:58,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:52:58,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:52:58,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:52:58,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:52:58,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:52:58,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:52:58,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:52:58,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:52:58,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:52:58,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:52:58,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:52:58,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:52:58,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:52:58,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:52:58,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:52:58,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:52:58,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:52:58,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:52:58,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:52:58,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:52:58,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:52:58,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:52:58,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:52:58,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:52:58,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:52:58,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:52:58,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:52:58,212 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:52:58,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:52:58,213 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:52:58,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:52:58,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:52:58,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:52:58,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:52:58,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:52:58,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:52:58,215 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:52:58,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:52:58,215 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:52:58,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:52:58,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:52:58,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:52:58,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:52:58,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:52:58,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:52:58,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:52:58,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:52:58,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:52:58,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:52:58,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:52:58,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:52:58,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:52:58,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2020-10-24 21:52:58,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:52:58,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:52:58,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:52:58,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:52:58,741 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:52:58,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-10-24 21:52:58,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f008407ef/489eaf1c278a4587abb60e5e6b99e76a/FLAG7ac533bd8 [2020-10-24 21:52:59,632 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:52:59,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-10-24 21:52:59,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f008407ef/489eaf1c278a4587abb60e5e6b99e76a/FLAG7ac533bd8 [2020-10-24 21:52:59,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f008407ef/489eaf1c278a4587abb60e5e6b99e76a [2020-10-24 21:52:59,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:52:59,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:52:59,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:52:59,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:52:59,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:52:59,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:52:59" (1/1) ... [2020-10-24 21:52:59,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc8af6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:59, skipping insertion in model container [2020-10-24 21:52:59,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:52:59" (1/1) ... [2020-10-24 21:52:59,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:52:59,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:53:00,571 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1080) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:706) 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:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) 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:1352) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 21:53:00,580 INFO L168 Benchmark]: Toolchain (without parser) took 755.07 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 32.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-24 21:53:00,581 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory is still 24.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:53:00,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.18 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 23.2 MB in the beginning and 32.4 MB in the end (delta: -9.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-24 21:53:00,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory is still 24.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 744.18 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 23.2 MB in the beginning and 32.4 MB in the end (delta: -9.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:53:03,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:53:03,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:53:03,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:53:03,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:53:03,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:53:03,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:53:03,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:53:03,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:53:03,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:53:03,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:53:03,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:53:03,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:53:03,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:53:03,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:53:03,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:53:03,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:53:03,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:53:03,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:53:03,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:53:03,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:53:03,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:53:03,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:53:03,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:53:03,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:53:03,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:53:03,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:53:03,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:53:03,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:53:03,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:53:03,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:53:03,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:53:03,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:53:03,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:53:03,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:53:03,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:53:03,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:53:03,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:53:03,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:53:03,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:53:03,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:53:03,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:53:03,307 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:53:03,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:53:03,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:53:03,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:53:03,310 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:53:03,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:53:03,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:53:03,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:53:03,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:53:03,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:53:03,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:53:03,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:53:03,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:53:03,313 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:53:03,313 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:53:03,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:53:03,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:53:03,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:53:03,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:53:03,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:53:03,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:53:03,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:53:03,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:53:03,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:53:03,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:53:03,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:53:03,317 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:53:03,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:53:03,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:53:03,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:53:03,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:53:03,318 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2020-10-24 21:53:03,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:53:03,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:53:03,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:53:03,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:53:03,741 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:53:03,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-10-24 21:53:03,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc9ee863/4e696561f66a4252a14bb7eba99b22a7/FLAGfb6140c89 [2020-10-24 21:53:04,541 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:53:04,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-10-24 21:53:04,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc9ee863/4e696561f66a4252a14bb7eba99b22a7/FLAGfb6140c89 [2020-10-24 21:53:04,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc9ee863/4e696561f66a4252a14bb7eba99b22a7 [2020-10-24 21:53:04,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:53:04,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:53:04,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:53:04,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:53:04,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:53:04,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:53:04" (1/1) ... [2020-10-24 21:53:04,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb0b98d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:04, skipping insertion in model container [2020-10-24 21:53:04,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:53:04" (1/1) ... [2020-10-24 21:53:04,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:53:04,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:53:05,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:53:05,671 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:53:05,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:53:06,125 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:53:06,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06 WrapperNode [2020-10-24 21:53:06,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:53:06,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:53:06,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:53:06,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:53:06,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:53:06,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:53:06,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:53:06,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:53:06,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... [2020-10-24 21:53:06,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:53:06,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:53:06,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:53:06,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:53:06,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:53:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:53:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:53:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:53:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:53:09,183 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:53:09,184 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 21:53:09,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:09 BoogieIcfgContainer [2020-10-24 21:53:09,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:53:09,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:53:09,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:53:09,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:53:09,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:53:04" (1/3) ... [2020-10-24 21:53:09,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e93dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:53:09, skipping insertion in model container [2020-10-24 21:53:09,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:53:06" (2/3) ... [2020-10-24 21:53:09,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e93dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:53:09, skipping insertion in model container [2020-10-24 21:53:09,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:09" (3/3) ... [2020-10-24 21:53:09,196 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.i [2020-10-24 21:53:09,210 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:53:09,219 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-24 21:53:09,234 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-24 21:53:09,279 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:53:09,285 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:53:09,285 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:53:09,285 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:53:09,285 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:53:09,285 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:53:09,285 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:53:09,286 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:53:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 21:53:09,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:53:09,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:53:09,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:53:09,311 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:53:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:53:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-10-24 21:53:09,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:53:09,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445754300] [2020-10-24 21:53:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 21:53:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:53:09,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 21:53:09,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:53:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:53:09,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:53:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:53:09,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445754300] [2020-10-24 21:53:09,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:53:09,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 21:53:09,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744775678] [2020-10-24 21:53:09,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 21:53:09,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:53:09,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 21:53:09,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 21:53:09,849 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 21:53:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:53:09,870 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-10-24 21:53:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 21:53:09,872 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 21:53:09,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:53:09,881 INFO L225 Difference]: With dead ends: 46 [2020-10-24 21:53:09,882 INFO L226 Difference]: Without dead ends: 19 [2020-10-24 21:53:09,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 21:53:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-24 21:53:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-24 21:53:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 21:53:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-10-24 21:53:09,929 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 7 [2020-10-24 21:53:09,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:53:09,930 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-10-24 21:53:09,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 21:53:09,930 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-10-24 21:53:09,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:53:09,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:53:09,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:53:10,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:53:10,149 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:53:10,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:53:10,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-10-24 21:53:10,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:53:10,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209002015] [2020-10-24 21:53:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 21:53:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:53:10,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 21:53:10,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:53:11,349 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 28 [2020-10-24 21:53:11,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:53:11,371 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:53:13,584 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (and (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState) (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) ULTIMATE.start_inductiveStepHunt_~startState))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2020-10-24 21:53:19,963 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_inductiveStepHunt_~startState (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (fp.lt .cse1 ULTIMATE.start_inductiveStepHunt_~startState) (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState)))) is different from false [2020-10-24 21:53:22,069 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_inductiveStepHunt_~startState (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (fp.lt .cse1 ULTIMATE.start_inductiveStepHunt_~startState) (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState)))) is different from true [2020-10-24 21:53:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:53:26,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:53:28,501 WARN L838 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-10-24 21:53:30,645 WARN L860 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2020-10-24 21:53:32,792 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2020-10-24 21:53:34,551 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,552 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,557 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,558 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,571 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,572 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,580 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,580 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,586 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,589 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,594 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,595 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,597 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,598 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,601 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,601 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,604 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,605 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,607 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,608 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,610 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 21:53:34,611 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,613 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,614 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,616 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 21:53:34,617 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,623 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,624 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,627 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,628 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,631 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,631 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,634 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,634 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,637 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,638 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,640 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,641 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,643 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,644 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,646 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 21:53:34,647 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,650 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,650 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,652 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-24 21:53:34,653 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,656 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,657 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,659 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,660 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,663 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,663 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,666 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,667 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,670 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,671 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,674 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,675 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,677 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,678 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,681 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-10-24 21:53:34,681 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:53:34,683 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-24 21:53:34,684 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-10-24 21:53:34,688 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-10-24 21:53:34,689 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-10-24 21:53:34,690 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-10-24 21:53:34,692 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-10-24 21:53:34,697 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-10-24 21:53:34,702 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-10-24 21:53:34,703 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-10-24 21:53:34,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-10-24 21:53:36,924 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from false [2020-10-24 21:53:39,160 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from true [2020-10-24 21:53:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:53:39,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209002015] [2020-10-24 21:53:39,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:53:39,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2020-10-24 21:53:39,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699843518] [2020-10-24 21:53:39,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 21:53:39,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:53:39,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 21:53:39,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=8, NotChecked=60, Total=110 [2020-10-24 21:53:39,166 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 11 states. [2020-10-24 21:53:41,299 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from false [2020-10-24 21:53:43,532 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from true [2020-10-24 21:53:45,674 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (.cse0 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (or .cse0 (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse1)) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse2 (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState))) (or (and .cse2 (or (and .cse0 (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) c_ULTIMATE.start_inductiveStepHunt_~startState))) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.lt .cse1 c_ULTIMATE.start_inductiveStepHunt_~startState)))) (and (not .cse2) .cse0))))) is different from false [2020-10-24 21:53:49,761 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (fp.lt .cse0 c_ULTIMATE.start_inductiveStepHunt_~startState))) is different from false [2020-10-24 21:53:53,816 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (and (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState) (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) ULTIMATE.start_inductiveStepHunt_~startState))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.gt c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2020-10-24 21:53:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:53:54,793 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-10-24 21:53:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 21:53:54,794 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-10-24 21:53:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:53:54,795 INFO L225 Difference]: With dead ends: 19 [2020-10-24 21:53:54,796 INFO L226 Difference]: Without dead ends: 16 [2020-10-24 21:53:54,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.0s TimeCoverageRelationStatistics Valid=29, Invalid=24, Unknown=13, NotChecked=144, Total=210 [2020-10-24 21:53:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-24 21:53:54,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-24 21:53:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-24 21:53:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-24 21:53:54,805 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2020-10-24 21:53:54,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:53:54,806 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-24 21:53:54,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 21:53:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-24 21:53:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 21:53:54,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:53:54,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:53:55,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 21:53:55,021 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:53:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:53:55,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1843628997, now seen corresponding path program 1 times [2020-10-24 21:53:55,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:53:55,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853036960] [2020-10-24 21:53:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 21:53:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:53:55,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 21:53:55,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:53:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:53:55,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:53:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:53:55,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853036960] [2020-10-24 21:53:55,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:53:55,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-24 21:53:55,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478873527] [2020-10-24 21:53:55,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:53:55,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:53:55,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:53:55,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:53:55,754 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2020-10-24 21:53:58,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:53:58,569 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-24 21:53:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:53:58,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-24 21:53:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:53:58,570 INFO L225 Difference]: With dead ends: 16 [2020-10-24 21:53:58,570 INFO L226 Difference]: Without dead ends: 13 [2020-10-24 21:53:58,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:53:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-24 21:53:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-24 21:53:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-24 21:53:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-10-24 21:53:58,573 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2020-10-24 21:53:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:53:58,574 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-10-24 21:53:58,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:53:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-10-24 21:53:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 21:53:58,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:53:58,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:53:58,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 21:53:58,776 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:53:58,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:53:58,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1317586258, now seen corresponding path program 1 times [2020-10-24 21:53:58,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:53:58,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339563889] [2020-10-24 21:53:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 21:53:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:53:59,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 21:53:59,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:53:59,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 21:54:03,676 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 18 [2020-10-24 21:54:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:54:03,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:54:06,554 WARN L838 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_simplifiedInductiveStepHunt_~target~1 c_ULTIMATE.start_simplifiedInductiveStepHunt_~nextState) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-10-24 21:54:13,878 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification that was a NOOP. DAG size: 10 [2020-10-24 21:54:13,885 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 21:54:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:54:14,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339563889] [2020-10-24 21:54:14,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:54:14,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 21:54:14,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788905111] [2020-10-24 21:54:14,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 21:54:14,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:54:14,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 21:54:14,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=38, Unknown=1, NotChecked=12, Total=72 [2020-10-24 21:54:14,329 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 9 states. [2020-10-24 21:54:25,412 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 29 DAG size of output: 18 [2020-10-24 21:54:34,126 WARN L193 SmtUtils]: Spent 7.81 s on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-10-24 21:54:34,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:54:34,340 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-10-24 21:54:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 21:54:34,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-10-24 21:54:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:54:34,398 INFO L225 Difference]: With dead ends: 13 [2020-10-24 21:54:34,398 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:54:34,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=36, Invalid=57, Unknown=1, NotChecked=16, Total=110 [2020-10-24 21:54:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:54:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:54:34,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:54:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:54:34,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-24 21:54:34,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:54:34,400 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:54:34,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 21:54:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:54:34,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:54:34,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 21:54:34,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:54:34,652 INFO L274 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-10-24 21:54:34,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,652 INFO L277 CegarLoopResult]: At program point L399(lines 394 400) the Hoare annotation is: true [2020-10-24 21:54:34,652 INFO L274 CegarLoopResult]: For program point L391(line 391) no Hoare annotation was computed. [2020-10-24 21:54:34,652 INFO L274 CegarLoopResult]: For program point L391-2(lines 387 393) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,653 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-10-24 21:54:34,654 INFO L274 CegarLoopResult]: For program point L377(lines 377 385) no Hoare annotation was computed. [2020-10-24 21:54:34,655 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-24 21:54:34,655 INFO L274 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-10-24 21:54:34,655 INFO L274 CegarLoopResult]: For program point L386(lines 386 393) no Hoare annotation was computed. [2020-10-24 21:54:34,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:54:34 BoogieIcfgContainer [2020-10-24 21:54:34,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:54:34,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:54:34,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:54:34,666 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:54:34,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:53:09" (3/4) ... [2020-10-24 21:54:34,671 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:54:34,686 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-10-24 21:54:34,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 21:54:34,687 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:54:34,688 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:54:34,773 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:54:34,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:54:34,775 INFO L168 Benchmark]: Toolchain (without parser) took 89958.70 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 30.4 MB in the beginning and 29.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,778 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory was 29.3 MB in the beginning and 29.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:34,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1300.58 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 29.7 MB in the beginning and 28.9 MB in the end (delta: 846.4 kB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.52 ms. Allocated memory is still 56.6 MB. Free memory was 28.9 MB in the beginning and 26.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,780 INFO L168 Benchmark]: Boogie Preprocessor took 32.88 ms. Allocated memory is still 56.6 MB. Free memory was 26.3 MB in the beginning and 24.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,780 INFO L168 Benchmark]: RCFGBuilder took 2960.99 ms. Allocated memory is still 56.6 MB. Free memory was 24.7 MB in the beginning and 31.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,781 INFO L168 Benchmark]: TraceAbstraction took 85477.16 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 30.5 MB in the beginning and 32.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,783 INFO L168 Benchmark]: Witness Printer took 107.84 ms. Allocated memory is still 73.4 MB. Free memory was 32.2 MB in the beginning and 29.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:34,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory was 29.3 MB in the beginning and 29.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1300.58 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 29.7 MB in the beginning and 28.9 MB in the end (delta: 846.4 kB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.52 ms. Allocated memory is still 56.6 MB. Free memory was 28.9 MB in the beginning and 26.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.88 ms. Allocated memory is still 56.6 MB. Free memory was 26.3 MB in the beginning and 24.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2960.99 ms. Allocated memory is still 56.6 MB. Free memory was 24.7 MB in the beginning and 31.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 85477.16 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 30.5 MB in the beginning and 32.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Witness Printer took 107.84 ms. Allocated memory is still 73.4 MB. Free memory was 32.2 MB in the beginning and 29.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 85.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 13 SDslu, 27 SDs, 0 SdLazy, 52 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 62.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 43.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 6 QuantifiedInterpolants, 4906 SizeOfPredicates, 15 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...