./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0873a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/float-newlib/float_req_bl_0873a.c -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 2ce8d6b4234bd6bf0bfcfd1e4c4c2558dac9d6bd9149c930ad3206caf329db1b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:49:48,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:49:48,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:49:48,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:49:48,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:49:48,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:49:48,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:49:48,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:49:48,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:49:48,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:49:48,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:49:48,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:49:48,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:49:48,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:49:48,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:49:48,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:49:48,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:49:48,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:49:48,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:49:48,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:49:48,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:49:48,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:49:48,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:49:48,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:49:48,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:49:48,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:49:48,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:49:48,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:49:48,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:49:48,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:49:48,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:49:48,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:49:48,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:49:48,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:49:48,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:49:48,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:49:48,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:49:48,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:49:48,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:49:48,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:49:48,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:49:48,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:49:48,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:49:48,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:49:48,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:49:48,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:49:48,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:49:48,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:49:48,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:49:48,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:49:48,778 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:49:48,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:49:48,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:49:48,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:49:48,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:49:48,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:49:48,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:49:48,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:49:48,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:49:48,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:49:48,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:49:48,780 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:49:48,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:49:48,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:49:48,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:49:48,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:49:48,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:49:48,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:49:48,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:49:48,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:49:48,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:49:48,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:49:48,782 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:49:48,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:49:48,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:49:48,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:49:48,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ce8d6b4234bd6bf0bfcfd1e4c4c2558dac9d6bd9149c930ad3206caf329db1b [2021-12-17 07:49:48,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:49:49,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:49:49,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:49:49,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:49:49,017 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:49:49,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0873a.c [2021-12-17 07:49:49,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac736f37/3263e1a34382482fbf5e20a0b15c4d91/FLAGd13f9d2f6 [2021-12-17 07:49:49,482 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:49:49,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0873a.c [2021-12-17 07:49:49,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac736f37/3263e1a34382482fbf5e20a0b15c4d91/FLAGd13f9d2f6 [2021-12-17 07:49:49,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac736f37/3263e1a34382482fbf5e20a0b15c4d91 [2021-12-17 07:49:49,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:49:49,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:49:49,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:49:49,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:49:49,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:49:49,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:49" (1/1) ... [2021-12-17 07:49:49,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acf9ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:49, skipping insertion in model container [2021-12-17 07:49:49,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:49" (1/1) ... [2021-12-17 07:49:49,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:49:49,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:49:50,084 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$50(StandardFunctionHandler.java:415) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2021) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1633) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) 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.visit(CHandler.java:1610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) 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.CHandler.visit(CHandler.java:595) 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) [2021-12-17 07:49:50,089 INFO L158 Benchmark]: Toolchain (without parser) took 230.03ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 94.7MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 07:49:50,089 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:49:50,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.12ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 94.7MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 07:49:50,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.12ms. Allocated memory is still 121.6MB. Free memory was 89.1MB in the beginning and 94.7MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/float-newlib/float_req_bl_0873a.c -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 2ce8d6b4234bd6bf0bfcfd1e4c4c2558dac9d6bd9149c930ad3206caf329db1b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:49:51,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:49:51,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:49:51,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:49:51,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:49:51,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:49:51,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:49:51,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:49:51,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:49:52,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:49:52,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:49:52,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:49:52,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:49:52,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:49:52,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:49:52,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:49:52,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:49:52,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:49:52,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:49:52,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:49:52,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:49:52,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:49:52,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:49:52,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:49:52,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:49:52,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:49:52,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:49:52,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:49:52,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:49:52,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:49:52,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:49:52,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:49:52,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:49:52,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:49:52,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:49:52,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:49:52,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:49:52,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:49:52,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:49:52,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:49:52,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:49:52,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:49:52,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:49:52,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:49:52,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:49:52,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:49:52,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:49:52,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:49:52,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:49:52,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:49:52,087 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:49:52,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:49:52,088 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:49:52,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:49:52,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:49:52,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:49:52,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:49:52,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:49:52,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:49:52,089 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:49:52,090 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:49:52,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:49:52,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:49:52,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:49:52,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:49:52,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:49:52,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:49:52,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:49:52,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:49:52,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:49:52,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:49:52,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:49:52,092 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:49:52,092 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:49:52,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:49:52,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:49:52,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:49:52,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:49:52,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:49:52,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ce8d6b4234bd6bf0bfcfd1e4c4c2558dac9d6bd9149c930ad3206caf329db1b [2021-12-17 07:49:52,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:49:52,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:49:52,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:49:52,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:49:52,389 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:49:52,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0873a.c [2021-12-17 07:49:52,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbebe6992/dc0761bd023a4e06a3e825e370cdfc89/FLAG4271ef8c0 [2021-12-17 07:49:52,888 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:49:52,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0873a.c [2021-12-17 07:49:52,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbebe6992/dc0761bd023a4e06a3e825e370cdfc89/FLAG4271ef8c0 [2021-12-17 07:49:53,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbebe6992/dc0761bd023a4e06a3e825e370cdfc89 [2021-12-17 07:49:53,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:49:53,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:49:53,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:49:53,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:49:53,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:49:53,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bce723c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53, skipping insertion in model container [2021-12-17 07:49:53,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:49:53,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:49:53,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0873a.c[13768,13781] [2021-12-17 07:49:53,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:49:53,636 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:49:53,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0873a.c[13768,13781] [2021-12-17 07:49:53,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:49:53,717 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:49:53,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53 WrapperNode [2021-12-17 07:49:53,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:49:53,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:49:53,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:49:53,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:49:53,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,799 INFO L137 Inliner]: procedures = 25, calls = 187, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 737 [2021-12-17 07:49:53,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:49:53,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:49:53,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:49:53,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:49:53,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:49:53,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:49:53,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:49:53,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:49:53,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (1/1) ... [2021-12-17 07:49:53,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:49:53,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:49:53,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 07:49:53,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 07:49:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:49:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-12-17 07:49:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-12-17 07:49:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-17 07:49:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:49:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:49:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-17 07:49:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:49:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:49:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:49:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-17 07:49:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:49:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:49:54,111 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:49:54,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:50:18,921 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:50:18,936 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:50:18,936 INFO L301 CfgBuilder]: Removed 70 assume(true) statements. [2021-12-17 07:50:18,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:50:18 BoogieIcfgContainer [2021-12-17 07:50:18,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:50:18,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:50:18,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:50:18,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:50:18,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:49:53" (1/3) ... [2021-12-17 07:50:18,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289e75e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:50:18, skipping insertion in model container [2021-12-17 07:50:18,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:53" (2/3) ... [2021-12-17 07:50:18,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289e75e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:50:18, skipping insertion in model container [2021-12-17 07:50:18,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:50:18" (3/3) ... [2021-12-17 07:50:18,946 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0873a.c [2021-12-17 07:50:18,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:50:18,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:50:18,991 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:50:18,997 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:50:18,997 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:50:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 183 states have (on average 1.726775956284153) internal successors, (316), 184 states have internal predecessors, (316), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:50:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-17 07:50:19,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:19,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:50:19,015 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:19,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:19,019 INFO L85 PathProgramCache]: Analyzing trace with hash -164865012, now seen corresponding path program 1 times [2021-12-17 07:50:19,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:19,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293701995] [2021-12-17 07:50:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:19,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:19,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:19,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:50:19,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:50:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:19,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:50:19,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:50:19,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:19,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:19,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293701995] [2021-12-17 07:50:19,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293701995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:19,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:19,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:50:19,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095575094] [2021-12-17 07:50:19,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:19,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:50:19,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:50:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:50:19,918 INFO L87 Difference]: Start difference. First operand has 189 states, 183 states have (on average 1.726775956284153) internal successors, (316), 184 states have internal predecessors, (316), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:19,984 INFO L93 Difference]: Finished difference Result 376 states and 645 transitions. [2021-12-17 07:50:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:50:19,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-17 07:50:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:19,992 INFO L225 Difference]: With dead ends: 376 [2021-12-17 07:50:19,992 INFO L226 Difference]: Without dead ends: 186 [2021-12-17 07:50:19,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:50:19,997 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:50:19,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:50:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-12-17 07:50:20,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2021-12-17 07:50:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3370165745856353) internal successors, (242), 181 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:50:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 248 transitions. [2021-12-17 07:50:20,054 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 248 transitions. Word has length 9 [2021-12-17 07:50:20,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:20,054 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 248 transitions. [2021-12-17 07:50:20,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:20,055 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 248 transitions. [2021-12-17 07:50:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 07:50:20,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:20,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:50:20,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 07:50:20,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:50:20,274 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:20,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:20,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1290864143, now seen corresponding path program 1 times [2021-12-17 07:50:20,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:20,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536692664] [2021-12-17 07:50:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:20,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:20,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:20,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:50:20,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 07:50:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:21,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:50:21,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:21,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:50:21,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:21,550 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:21,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536692664] [2021-12-17 07:50:21,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536692664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:21,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:21,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:50:21,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283335872] [2021-12-17 07:50:21,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:21,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:50:21,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:21,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:50:21,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:50:21,553 INFO L87 Difference]: Start difference. First operand 186 states and 248 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:21,585 INFO L93 Difference]: Finished difference Result 190 states and 251 transitions. [2021-12-17 07:50:21,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:50:21,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 07:50:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:21,586 INFO L225 Difference]: With dead ends: 190 [2021-12-17 07:50:21,587 INFO L226 Difference]: Without dead ends: 186 [2021-12-17 07:50:21,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:50:21,588 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:50:21,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 39 Unchecked, 0.0s Time] [2021-12-17 07:50:21,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-12-17 07:50:21,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2021-12-17 07:50:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3314917127071824) internal successors, (241), 181 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:50:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 247 transitions. [2021-12-17 07:50:21,598 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 247 transitions. Word has length 11 [2021-12-17 07:50:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:21,599 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 247 transitions. [2021-12-17 07:50:21,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 247 transitions. [2021-12-17 07:50:21,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-17 07:50:21,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:21,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:50:21,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 07:50:21,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:50:21,821 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:21,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:21,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1358978294, now seen corresponding path program 1 times [2021-12-17 07:50:21,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:21,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438770364] [2021-12-17 07:50:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:21,822 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:21,823 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:50:21,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 07:50:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:22,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-17 07:50:22,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:22,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-17 07:50:23,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-12-17 07:50:23,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:50:23,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:23,920 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:23,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438770364] [2021-12-17 07:50:23,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438770364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:23,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:23,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:50:23,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814357714] [2021-12-17 07:50:23,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:23,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:50:23,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:23,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:50:23,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:50:23,921 INFO L87 Difference]: Start difference. First operand 186 states and 247 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:23,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:23,931 INFO L93 Difference]: Finished difference Result 190 states and 250 transitions. [2021-12-17 07:50:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:50:23,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-17 07:50:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:23,933 INFO L225 Difference]: With dead ends: 190 [2021-12-17 07:50:23,933 INFO L226 Difference]: Without dead ends: 185 [2021-12-17 07:50:23,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:50:23,934 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:50:23,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1072 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 125 Unchecked, 0.0s Time] [2021-12-17 07:50:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-17 07:50:23,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-12-17 07:50:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.3222222222222222) internal successors, (238), 180 states have internal predecessors, (238), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:50:23,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 244 transitions. [2021-12-17 07:50:23,966 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 244 transitions. Word has length 13 [2021-12-17 07:50:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:23,966 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 244 transitions. [2021-12-17 07:50:23,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 244 transitions. [2021-12-17 07:50:23,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-17 07:50:23,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:23,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:50:24,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-17 07:50:24,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:50:24,173 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:24,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1694163668, now seen corresponding path program 1 times [2021-12-17 07:50:24,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:24,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458163985] [2021-12-17 07:50:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:24,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:24,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:24,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:50:24,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 07:50:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:24,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 07:50:24,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:50:25,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:25,223 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:25,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458163985] [2021-12-17 07:50:25,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458163985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:25,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:25,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 07:50:25,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090660382] [2021-12-17 07:50:25,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:25,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 07:50:25,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:25,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 07:50:25,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:50:25,225 INFO L87 Difference]: Start difference. First operand 185 states and 244 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:25,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:25,238 INFO L93 Difference]: Finished difference Result 357 states and 471 transitions. [2021-12-17 07:50:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 07:50:25,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-17 07:50:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:25,239 INFO L225 Difference]: With dead ends: 357 [2021-12-17 07:50:25,239 INFO L226 Difference]: Without dead ends: 185 [2021-12-17 07:50:25,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:50:25,241 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:50:25,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 699 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-17 07:50:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-17 07:50:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-12-17 07:50:25,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.3166666666666667) internal successors, (237), 180 states have internal predecessors, (237), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:50:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 243 transitions. [2021-12-17 07:50:25,248 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 243 transitions. Word has length 15 [2021-12-17 07:50:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:25,248 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 243 transitions. [2021-12-17 07:50:25,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 243 transitions. [2021-12-17 07:50:25,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-17 07:50:25,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:25,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:50:25,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 07:50:25,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:50:25,476 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:25,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash 700883705, now seen corresponding path program 1 times [2021-12-17 07:50:25,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:25,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655098189] [2021-12-17 07:50:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:25,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:25,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:25,479 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:50:25,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 07:50:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:26,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 07:50:26,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:50:26,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:26,744 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:26,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655098189] [2021-12-17 07:50:26,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655098189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:26,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:26,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 07:50:26,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181706085] [2021-12-17 07:50:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:26,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:50:26,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:26,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:50:26,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:50:26,745 INFO L87 Difference]: Start difference. First operand 185 states and 243 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:50:30,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:33,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:37,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:40,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:42,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:44,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:46,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:48,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:50,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:52,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:54,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:56,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:57,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:00,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:02,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:04,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:07,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:09,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:11,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:14,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:16,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:18,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:19,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:22,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:22,610 INFO L93 Difference]: Finished difference Result 193 states and 249 transitions. [2021-12-17 07:51:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:51:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-17 07:51:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:22,623 INFO L225 Difference]: With dead ends: 193 [2021-12-17 07:51:22,623 INFO L226 Difference]: Without dead ends: 189 [2021-12-17 07:51:22,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 07:51:22,624 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 108 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.6s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:22,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 714 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 18 Unknown, 0 Unchecked, 55.6s Time] [2021-12-17 07:51:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-12-17 07:51:22,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2021-12-17 07:51:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.3111111111111111) internal successors, (236), 180 states have internal predecessors, (236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:51:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 242 transitions. [2021-12-17 07:51:22,637 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 242 transitions. Word has length 16 [2021-12-17 07:51:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:22,638 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 242 transitions. [2021-12-17 07:51:22,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:22,638 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 242 transitions. [2021-12-17 07:51:22,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-17 07:51:22,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:22,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:51:22,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:22,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:22,839 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:22,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:22,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1001263673, now seen corresponding path program 1 times [2021-12-17 07:51:22,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:22,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635427905] [2021-12-17 07:51:22,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:22,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:22,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:22,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:22,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 07:51:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:23,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:51:23,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:51:24,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:24,549 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:24,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635427905] [2021-12-17 07:51:24,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635427905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:24,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:24,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:51:24,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656551915] [2021-12-17 07:51:24,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:24,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:51:24,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:24,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:51:24,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:24,551 INFO L87 Difference]: Start difference. First operand 185 states and 242 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:24,558 INFO L93 Difference]: Finished difference Result 351 states and 459 transitions. [2021-12-17 07:51:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:51:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-17 07:51:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:24,559 INFO L225 Difference]: With dead ends: 351 [2021-12-17 07:51:24,559 INFO L226 Difference]: Without dead ends: 186 [2021-12-17 07:51:24,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:24,561 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:24,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 904 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2021-12-17 07:51:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-12-17 07:51:24,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2021-12-17 07:51:24,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3093922651933703) internal successors, (237), 181 states have internal predecessors, (237), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:51:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 243 transitions. [2021-12-17 07:51:24,568 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 243 transitions. Word has length 17 [2021-12-17 07:51:24,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:24,569 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 243 transitions. [2021-12-17 07:51:24,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 243 transitions. [2021-12-17 07:51:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-17 07:51:24,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:24,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:51:24,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:24,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:24,783 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:24,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash 833883574, now seen corresponding path program 1 times [2021-12-17 07:51:24,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:24,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399048350] [2021-12-17 07:51:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:24,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:24,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:24,800 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:24,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-17 07:51:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:25,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:51:25,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:51:26,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:26,591 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:26,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399048350] [2021-12-17 07:51:26,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399048350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:26,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:26,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:51:26,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831729224] [2021-12-17 07:51:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:26,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:51:26,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:51:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:26,592 INFO L87 Difference]: Start difference. First operand 186 states and 243 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:26,594 INFO L93 Difference]: Finished difference Result 196 states and 255 transitions. [2021-12-17 07:51:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:51:26,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-17 07:51:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:26,594 INFO L225 Difference]: With dead ends: 196 [2021-12-17 07:51:26,594 INFO L226 Difference]: Without dead ends: 22 [2021-12-17 07:51:26,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:26,595 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:26,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2021-12-17 07:51:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-17 07:51:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-17 07:51:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-12-17 07:51:26,597 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 18 [2021-12-17 07:51:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:26,597 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-12-17 07:51:26,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-12-17 07:51:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 07:51:26,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:26,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:51:26,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:26,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:26,799 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:26,799 INFO L85 PathProgramCache]: Analyzing trace with hash 911781551, now seen corresponding path program 1 times [2021-12-17 07:51:26,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:26,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717037624] [2021-12-17 07:51:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:26,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:26,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:26,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-17 07:51:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:27,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:51:27,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:51:28,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:28,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:28,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717037624] [2021-12-17 07:51:28,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717037624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:28,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:28,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:51:28,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996898395] [2021-12-17 07:51:28,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:28,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:51:28,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:51:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:28,567 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:28,567 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-12-17 07:51:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:51:28,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-17 07:51:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:28,568 INFO L225 Difference]: With dead ends: 22 [2021-12-17 07:51:28,568 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:51:28,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:28,568 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:28,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-12-17 07:51:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:51:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:51:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:51:28,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-12-17 07:51:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:28,569 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:51:28,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:51:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:51:28,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:51:28,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:51:28,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-17 07:51:28,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:28,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:51:29,279 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 188) no Hoare annotation was computed. [2021-12-17 07:51:29,279 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:29,279 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:29,279 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 193) no Hoare annotation was computed. [2021-12-17 07:51:29,279 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:29,279 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 177 195) the Hoare annotation is: true [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L179-1(lines 179 183) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L861 garLoopResultBuilder]: At program point L179-2(lines 179 183) the Hoare annotation is: true [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 533) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L531-2(lines 522 534) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 533) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 433 437) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 368) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L854 garLoopResultBuilder]: At program point L433-2(lines 433 437) the Hoare annotation is: false [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L170-1(lines 170 174) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L854 garLoopResultBuilder]: At program point L170-2(lines 170 174) the Hoare annotation is: false [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L170-3(lines 170 174) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L600(lines 600 603) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L501(lines 501 502) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 410) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 402 410) no Hoare annotation was computed. [2021-12-17 07:51:29,280 INFO L858 garLoopResultBuilder]: For program point L303-1(lines 303 307) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L854 garLoopResultBuilder]: At program point L303-2(lines 303 307) the Hoare annotation is: (and (= ~one_pow~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 1.0))) (and (= |ULTIMATE.start___ieee754_powf_~y#1| (fp.div currentRoundingMode .cse0 (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_powf_~x#1| (fp.neg .cse0)))))) [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L601(line 601) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 243) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 205 209) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L854 garLoopResultBuilder]: At program point L205-2(lines 205 209) the Hoare annotation is: false [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L205-3(lines 205 209) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L139-2(lines 139 140) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 507) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L438-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L405-1(lines 405 409) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L854 garLoopResultBuilder]: At program point L405-2(lines 405 409) the Hoare annotation is: false [2021-12-17 07:51:29,281 INFO L854 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: false [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L240-1(line 240) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L538(lines 538 550) no Hoare annotation was computed. [2021-12-17 07:51:29,281 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 571 575) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L854 garLoopResultBuilder]: At program point L571-2(lines 571 575) the Hoare annotation is: false [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L538-2(lines 538 550) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L571-3(lines 571 575) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 472 476) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L854 garLoopResultBuilder]: At program point L472-2(lines 472 476) the Hoare annotation is: false [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 374) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 343) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L854 garLoopResultBuilder]: At program point L175(lines 111 176) the Hoare annotation is: false [2021-12-17 07:51:29,282 INFO L861 garLoopResultBuilder]: At program point L605(lines 588 606) the Hoare annotation is: true [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L341(line 341) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L341-2(line 341) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L854 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: false [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L242-1(line 242) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 499) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L375-2(lines 375 499) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2021-12-17 07:51:29,282 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 541 545) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L854 garLoopResultBuilder]: At program point L541-2(lines 541 545) the Hoare annotation is: false [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 512) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L541-3(lines 541 545) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L343(line 343) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L343-2(line 343) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 378) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 213) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 249) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L854 garLoopResultBuilder]: At program point L245-2(lines 245 249) the Hoare annotation is: false [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L245-3(lines 245 249) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 481) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L477-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L477-2(lines 477 481) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 350) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L858 garLoopResultBuilder]: For program point L378-2(line 378) no Hoare annotation was computed. [2021-12-17 07:51:29,283 INFO L854 garLoopResultBuilder]: At program point L147-2(lines 147 156) the Hoare annotation is: false [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L147-3(lines 111 176) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 584) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L379(lines 379 380) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 349) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L214(lines 214 215) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L380-2(line 380) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 153) no Hoare annotation was computed. [2021-12-17 07:51:29,284 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 153) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L854 garLoopResultBuilder]: At program point L116-2(lines 116 120) the Hoare annotation is: false [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 226) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L216-2(lines 216 226) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 548) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 580 584) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L854 garLoopResultBuilder]: At program point L580-2(lines 580 584) the Hoare annotation is: false [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L547-2(lines 547 548) no Hoare annotation was computed. [2021-12-17 07:51:29,285 INFO L858 garLoopResultBuilder]: For program point L580-3(lines 577 584) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 423) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 317) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L854 garLoopResultBuilder]: At program point L250(lines 201 251) the Hoare annotation is: false [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L218-1(lines 218 222) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L854 garLoopResultBuilder]: At program point L218-2(lines 218 222) the Hoare annotation is: false [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L218-3(lines 218 222) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L516-1(lines 516 520) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L854 garLoopResultBuilder]: At program point L516-2(lines 516 520) the Hoare annotation is: false [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L516-3(lines 516 520) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 352) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 324) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 356) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 323) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L353-2(lines 353 356) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L254-1(lines 254 258) no Hoare annotation was computed. [2021-12-17 07:51:29,286 INFO L854 garLoopResultBuilder]: At program point L254-2(lines 254 258) the Hoare annotation is: false [2021-12-17 07:51:29,286 INFO L854 garLoopResultBuilder]: At program point L585(lines 297 586) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)))) (and (= |ULTIMATE.start___ieee754_powf_#res#1| .cse0) (= ~one_pow~0 .cse0))) [2021-12-17 07:51:29,286 INFO L858 garLoopResultBuilder]: For program point L552-1(lines 552 556) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L854 garLoopResultBuilder]: At program point L552-2(lines 552 556) the Hoare annotation is: false [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 355) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L387-1(lines 387 391) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L854 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: false [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 124) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 488 492) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L854 garLoopResultBuilder]: At program point L488-2(lines 488 492) the Hoare annotation is: false [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 225) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 167) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 534) no Hoare annotation was computed. [2021-12-17 07:51:29,287 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 428) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L424-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 424 428) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 263) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L259-1(lines 252 265) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L259-2(lines 259 263) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2021-12-17 07:51:29,288 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 561) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L557-2(lines 557 561) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 458 462) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L854 garLoopResultBuilder]: At program point L458-2(lines 458 462) the Hoare annotation is: false [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L392-1(lines 375 398) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 335) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L392-2(lines 392 396) no Hoare annotation was computed. [2021-12-17 07:51:29,289 INFO L858 garLoopResultBuilder]: For program point L326-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 129) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 527) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 371) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 334) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 229) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 165) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 527) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:29,290 INFO L858 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L854 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: false [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 363) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 334) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point L362-2(lines 360 371) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 237) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 601) no Hoare annotation was computed. [2021-12-17 07:51:29,291 INFO L854 garLoopResultBuilder]: At program point L264(lines 252 265) the Hoare annotation is: false [2021-12-17 07:51:29,292 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 231 235) no Hoare annotation was computed. [2021-12-17 07:51:29,292 INFO L854 garLoopResultBuilder]: At program point L231-2(lines 231 235) the Hoare annotation is: false [2021-12-17 07:51:29,292 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 136) no Hoare annotation was computed. [2021-12-17 07:51:29,293 INFO L858 garLoopResultBuilder]: For program point L231-3(lines 231 235) no Hoare annotation was computed. [2021-12-17 07:51:29,293 INFO L858 garLoopResultBuilder]: For program point L132-2(lines 132 136) no Hoare annotation was computed. [2021-12-17 07:51:29,293 INFO L858 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-12-17 07:51:29,297 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 467) no Hoare annotation was computed. [2021-12-17 07:51:29,297 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:29,297 INFO L858 garLoopResultBuilder]: For program point L463-2(lines 463 467) no Hoare annotation was computed. [2021-12-17 07:51:29,297 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 369) no Hoare annotation was computed. [2021-12-17 07:51:29,297 INFO L858 garLoopResultBuilder]: For program point L133-2(lines 133 134) no Hoare annotation was computed. [2021-12-17 07:51:29,297 INFO L854 garLoopResultBuilder]: At program point L133-3(lines 133 134) the Hoare annotation is: false [2021-12-17 07:51:29,298 INFO L858 garLoopResultBuilder]: For program point L133-4(lines 133 134) no Hoare annotation was computed. [2021-12-17 07:51:29,298 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 368) no Hoare annotation was computed. [2021-12-17 07:51:29,298 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 333) no Hoare annotation was computed. [2021-12-17 07:51:29,300 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:51:29,302 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:51:29,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:51:29 BoogieIcfgContainer [2021-12-17 07:51:29,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:51:29,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:51:29,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:51:29,316 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:51:29,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:50:18" (3/4) ... [2021-12-17 07:51:29,318 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:51:29,324 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-12-17 07:51:29,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-17 07:51:29,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-17 07:51:29,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 07:51:29,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:51:29,349 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: one_pow == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) [2021-12-17 07:51:29,383 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:51:29,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:51:29,384 INFO L158 Benchmark]: Toolchain (without parser) took 96081.95ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 40.7MB in the beginning and 45.0MB in the end (delta: -4.3MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,384 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:51:29,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.88ms. Allocated memory is still 56.6MB. Free memory was 40.5MB in the beginning and 39.5MB in the end (delta: 1.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.11ms. Allocated memory is still 56.6MB. Free memory was 39.5MB in the beginning and 35.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,385 INFO L158 Benchmark]: Boogie Preprocessor took 61.99ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 30.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,385 INFO L158 Benchmark]: RCFGBuilder took 25071.18ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 30.7MB in the beginning and 36.2MB in the end (delta: -5.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,385 INFO L158 Benchmark]: TraceAbstraction took 70376.08ms. Allocated memory is still 77.6MB. Free memory was 35.8MB in the beginning and 30.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,385 INFO L158 Benchmark]: Witness Printer took 67.80ms. Allocated memory is still 77.6MB. Free memory was 30.8MB in the beginning and 45.0MB in the end (delta: -14.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 07:51:29,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.88ms. Allocated memory is still 56.6MB. Free memory was 40.5MB in the beginning and 39.5MB in the end (delta: 1.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.11ms. Allocated memory is still 56.6MB. Free memory was 39.5MB in the beginning and 35.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.99ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 30.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 25071.18ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 30.7MB in the beginning and 36.2MB in the end (delta: -5.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 70376.08ms. Allocated memory is still 77.6MB. Free memory was 35.8MB in the beginning and 30.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 67.80ms. Allocated memory is still 77.6MB. Free memory was 30.8MB in the beginning and 45.0MB in the end (delta: -14.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 601]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 189 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 56.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 55.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 4663 SdHoareTripleChecker+Invalid, 54.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 240 IncrementalHoareTripleChecker+Unchecked, 3203 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1460 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 53 PreInvPairs, 56 NumberOfFragments, 68 HoareAnnotationTreeSize, 53 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 110 ConstructedInterpolants, 51 QuantifiedInterpolants, 1045 SizeOfPredicates, 50 NumberOfNonLiveVariables, 981 ConjunctsInSsa, 73 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: \result == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && one_pow == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 303]: Loop Invariant [2021-12-17 07:51:29,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:29,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: one_pow == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-17 07:51:29,599 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-17 07:51:29,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE