./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0881.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_0881.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 38a5409de7892736e2de01be9ec6b40de9935c7a9e78ae947f4a7fe77f1a0257 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 10:22:22,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 10:22:22,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 10:22:22,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 10:22:22,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 10:22:22,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 10:22:22,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 10:22:22,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 10:22:22,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 10:22:22,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 10:22:22,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 10:22:22,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 10:22:22,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 10:22:22,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 10:22:22,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 10:22:22,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 10:22:22,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 10:22:22,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 10:22:22,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 10:22:22,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 10:22:22,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 10:22:22,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 10:22:22,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 10:22:22,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 10:22:22,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 10:22:22,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 10:22:22,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 10:22:22,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 10:22:22,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 10:22:22,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 10:22:22,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 10:22:22,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 10:22:22,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 10:22:22,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 10:22:22,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 10:22:22,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 10:22:22,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 10:22:22,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 10:22:22,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 10:22:22,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 10:22:22,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 10:22:22,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 10:22:22,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 10:22:22,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 10:22:22,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 10:22:22,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 10:22:22,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 10:22:22,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 10:22:22,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 10:22:22,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 10:22:22,914 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 10:22:22,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 10:22:22,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 10:22:22,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 10:22:22,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 10:22:22,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 10:22:22,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 10:22:22,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 10:22:22,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 10:22:22,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 10:22:22,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 10:22:22,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 10:22:22,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 10:22:22,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 10:22:22,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 10:22:22,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 10:22:22,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:22:22,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 10:22:22,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 10:22:22,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 10:22:22,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 10:22:22,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 10:22:22,920 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 10:22:22,920 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 10:22:22,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 10:22:22,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 10:22:22,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38a5409de7892736e2de01be9ec6b40de9935c7a9e78ae947f4a7fe77f1a0257 [2021-12-22 10:22:23,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 10:22:23,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 10:22:23,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 10:22:23,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 10:22:23,220 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 10:22:23,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0881.c [2021-12-22 10:22:23,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274b6b290/8a974daa3da94968972a06d122dfd7f7/FLAG73c397739 [2021-12-22 10:22:23,777 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 10:22:23,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0881.c [2021-12-22 10:22:23,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274b6b290/8a974daa3da94968972a06d122dfd7f7/FLAG73c397739 [2021-12-22 10:22:24,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274b6b290/8a974daa3da94968972a06d122dfd7f7 [2021-12-22 10:22:24,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 10:22:24,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 10:22:24,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 10:22:24,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 10:22:24,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 10:22:24,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:22:24" (1/1) ... [2021-12-22 10:22:24,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f02327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:24, skipping insertion in model container [2021-12-22 10:22:24,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:22:24" (1/1) ... [2021-12-22 10:22:24,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 10:22:24,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 10:22:24,614 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) [2021-12-22 10:22:24,621 INFO L158 Benchmark]: Toolchain (without parser) took 317.12ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 57.2MB in the beginning and 84.9MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 10:22:24,621 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:22:24,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.17ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 57.2MB in the beginning and 84.9MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 10:22:24,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.17ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 57.2MB in the beginning and 84.9MB in the end (delta: -27.7MB). Peak memory consumption was 8.4MB. 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_0881.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 38a5409de7892736e2de01be9ec6b40de9935c7a9e78ae947f4a7fe77f1a0257 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 10:22:26,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 10:22:26,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 10:22:26,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 10:22:26,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 10:22:26,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 10:22:26,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 10:22:26,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 10:22:26,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 10:22:26,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 10:22:26,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 10:22:26,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 10:22:26,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 10:22:26,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 10:22:26,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 10:22:26,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 10:22:26,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 10:22:26,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 10:22:26,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 10:22:26,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 10:22:26,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 10:22:26,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 10:22:26,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 10:22:26,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 10:22:26,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 10:22:26,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 10:22:26,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 10:22:26,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 10:22:26,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 10:22:26,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 10:22:26,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 10:22:26,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 10:22:26,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 10:22:26,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 10:22:26,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 10:22:26,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 10:22:26,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 10:22:26,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 10:22:26,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 10:22:26,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 10:22:26,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 10:22:26,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-22 10:22:26,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 10:22:26,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 10:22:26,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 10:22:26,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 10:22:26,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 10:22:26,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 10:22:26,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 10:22:26,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 10:22:26,535 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 10:22:26,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 10:22:26,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 10:22:26,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 10:22:26,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 10:22:26,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 10:22:26,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 10:22:26,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 10:22:26,537 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 10:22:26,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-22 10:22:26,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-22 10:22:26,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 10:22:26,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 10:22:26,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 10:22:26,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 10:22:26,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 10:22:26,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 10:22:26,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 10:22:26,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:22:26,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 10:22:26,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 10:22:26,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 10:22:26,540 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-22 10:22:26,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-22 10:22:26,541 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 10:22:26,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 10:22:26,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 10:22:26,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 10:22:26,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-22 10:22:26,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38a5409de7892736e2de01be9ec6b40de9935c7a9e78ae947f4a7fe77f1a0257 [2021-12-22 10:22:26,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 10:22:26,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 10:22:26,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 10:22:26,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 10:22:26,898 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 10:22:26,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0881.c [2021-12-22 10:22:26,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d720c3cb/1250d2ec10264729b9f5b08e41b6dd0e/FLAG8a02d2613 [2021-12-22 10:22:27,551 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 10:22:27,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0881.c [2021-12-22 10:22:27,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d720c3cb/1250d2ec10264729b9f5b08e41b6dd0e/FLAG8a02d2613 [2021-12-22 10:22:27,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d720c3cb/1250d2ec10264729b9f5b08e41b6dd0e [2021-12-22 10:22:27,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 10:22:27,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 10:22:27,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 10:22:27,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 10:22:27,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 10:22:27,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:22:27" (1/1) ... [2021-12-22 10:22:27,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126048d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:27, skipping insertion in model container [2021-12-22 10:22:27,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:22:27" (1/1) ... [2021-12-22 10:22:27,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 10:22:28,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 10:22:28,416 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_0881.c[15390,15403] [2021-12-22 10:22:28,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:22:28,439 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 10:22:28,586 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_0881.c[15390,15403] [2021-12-22 10:22:28,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:22:28,615 INFO L208 MainTranslator]: Completed translation [2021-12-22 10:22:28,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28 WrapperNode [2021-12-22 10:22:28,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 10:22:28,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 10:22:28,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 10:22:28,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 10:22:28,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,733 INFO L137 Inliner]: procedures = 28, calls = 203, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 966 [2021-12-22 10:22:28,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 10:22:28,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 10:22:28,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 10:22:28,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 10:22:28,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 10:22:28,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 10:22:28,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 10:22:28,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 10:22:28,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (1/1) ... [2021-12-22 10:22:28,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:22:28,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 10:22:28,913 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) [2021-12-22 10:22:28,936 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 [2021-12-22 10:22:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 10:22:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-22 10:22:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 10:22:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-22 10:22:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-22 10:22:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-22 10:22:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-12-22 10:22:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-12-22 10:22:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-22 10:22:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 10:22:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 10:22:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-22 10:22:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 10:22:29,158 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 10:22:29,178 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 10:22:58,360 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 10:22:58,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 10:22:58,378 INFO L299 CfgBuilder]: Removed 88 assume(true) statements. [2021-12-22 10:22:58,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:22:58 BoogieIcfgContainer [2021-12-22 10:22:58,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 10:22:58,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 10:22:58,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 10:22:58,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 10:22:58,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:22:27" (1/3) ... [2021-12-22 10:22:58,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68496a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:22:58, skipping insertion in model container [2021-12-22 10:22:58,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:22:28" (2/3) ... [2021-12-22 10:22:58,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68496a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:22:58, skipping insertion in model container [2021-12-22 10:22:58,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:22:58" (3/3) ... [2021-12-22 10:22:58,387 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0881.c [2021-12-22 10:22:58,392 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 10:22:58,393 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 10:22:58,445 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 10:22:58,453 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 [2021-12-22 10:22:58,453 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 10:22:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2021-12-22 10:22:58,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-22 10:22:58,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:22:58,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 10:22:58,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:22:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:22:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1189443227, now seen corresponding path program 1 times [2021-12-22 10:22:58,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 10:22:58,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078965547] [2021-12-22 10:22:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:22:58,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 10:22:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 10:22:58,503 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) [2021-12-22 10:22:58,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-22 10:22:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 10:22:59,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-22 10:22:59,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 10:22:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 10:22:59,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 10:22:59,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 10:22:59,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078965547] [2021-12-22 10:22:59,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078965547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 10:22:59,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 10:22:59,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 10:22:59,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9626884] [2021-12-22 10:22:59,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 10:22:59,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-22 10:22:59,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 10:22:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-22 10:22:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-22 10:22:59,659 INFO L87 Difference]: Start difference. First operand has 249 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 8.0) internal successors, (16), 2 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) [2021-12-22 10:22:59,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 10:22:59,709 INFO L93 Difference]: Finished difference Result 495 states and 855 transitions. [2021-12-22 10:22:59,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-22 10:22:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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 [2021-12-22 10:22:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 10:22:59,718 INFO L225 Difference]: With dead ends: 495 [2021-12-22 10:22:59,718 INFO L226 Difference]: Without dead ends: 245 [2021-12-22 10:22:59,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-22 10:22:59,725 INFO L933 BasicCegarLoop]: 339 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, 339 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 [2021-12-22 10:22:59,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 10:22:59,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-12-22 10:22:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2021-12-22 10:22:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.3666666666666667) internal successors, (328), 240 states have internal predecessors, (328), 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) [2021-12-22 10:22:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2021-12-22 10:22:59,777 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 16 [2021-12-22 10:22:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 10:22:59,778 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2021-12-22 10:22:59,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) [2021-12-22 10:22:59,778 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2021-12-22 10:22:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-22 10:22:59,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:22:59,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 10:22:59,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-22 10:22:59,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-22 10:22:59,984 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:22:59,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:22:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash -305503749, now seen corresponding path program 1 times [2021-12-22 10:22:59,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 10:22:59,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409080582] [2021-12-22 10:22:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:22:59,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 10:22:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 10:22:59,989 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) [2021-12-22 10:22:59,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-22 10:23:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 10:23:00,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 10:23:00,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 10:23:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 10:23:01,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 10:23:01,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 10:23:01,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409080582] [2021-12-22 10:23:01,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409080582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 10:23:01,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 10:23:01,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 10:23:01,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030021698] [2021-12-22 10:23:01,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 10:23:01,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 10:23:01,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 10:23:01,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 10:23:01,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 10:23:01,450 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-12-22 10:23:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 10:23:02,020 INFO L93 Difference]: Finished difference Result 471 states and 639 transitions. [2021-12-22 10:23:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 10:23:02,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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 [2021-12-22 10:23:02,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 10:23:02,025 INFO L225 Difference]: With dead ends: 471 [2021-12-22 10:23:02,025 INFO L226 Difference]: Without dead ends: 245 [2021-12-22 10:23:02,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 10:23:02,029 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 2 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 10:23:02,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 988 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 10:23:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-12-22 10:23:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2021-12-22 10:23:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.3583333333333334) internal successors, (326), 240 states have internal predecessors, (326), 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) [2021-12-22 10:23:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 332 transitions. [2021-12-22 10:23:02,067 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 332 transitions. Word has length 19 [2021-12-22 10:23:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 10:23:02,067 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 332 transitions. [2021-12-22 10:23:02,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-12-22 10:23:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 332 transitions. [2021-12-22 10:23:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-22 10:23:02,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:23:02,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 10:23:02,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-22 10:23:02,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-22 10:23:02,284 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:23:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:23:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash 366705631, now seen corresponding path program 1 times [2021-12-22 10:23:02,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 10:23:02,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552247102] [2021-12-22 10:23:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:23:02,285 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 10:23:02,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 10:23:02,303 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) [2021-12-22 10:23:02,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-22 10:23:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 10:23:03,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-22 10:23:03,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 10:23:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 10:23:13,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 10:23:13,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 10:23:13,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552247102] [2021-12-22 10:23:13,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552247102] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 10:23:13,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 10:23:13,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 10:23:13,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261440772] [2021-12-22 10:23:13,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 10:23:13,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 10:23:13,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 10:23:13,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 10:23:13,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 10:23:13,883 INFO L87 Difference]: Start difference. First operand 245 states and 332 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 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) [2021-12-22 10:23:18,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:21,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:22,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:26,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:28,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:30,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:33,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:23:36,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []