./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0875.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_0875.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 027149746a3758b07c50ff16b2dbdfe672cfd188ffc035544f53bfbbaccdb52e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:49:53,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:49:53,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:49:53,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:49:53,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:49:53,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:49:53,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:49:53,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:49:53,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:49:53,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:49:53,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:49:53,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:49:53,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:49:53,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:49:53,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:49:53,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:49:53,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:49:53,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:49:53,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:49:53,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:49:53,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:49:53,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:49:53,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:49:53,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:49:53,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:49:53,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:49:53,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:49:53,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:49:53,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:49:53,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:49:53,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:49:53,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:49:53,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:49:53,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:49:53,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:49:53,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:49:53,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:49:53,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:49:53,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:49:53,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:49:53,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:49:53,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:49:53,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:49:53,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:49:53,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:49:53,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:49:53,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:49:53,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:49:53,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:49:53,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:49:53,884 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:49:53,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:49:53,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:49:53,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:49:53,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:49:53,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:49:53,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:49:53,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:49:53,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:49:53,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:49:53,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:49:53,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:49:53,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:49:53,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:49:53,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:49:53,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:49:53,892 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:49:53,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:49:53,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:49:53,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:49:53,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 027149746a3758b07c50ff16b2dbdfe672cfd188ffc035544f53bfbbaccdb52e [2021-12-17 07:49:54,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:49:54,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:49:54,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:49:54,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:49:54,278 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:49:54,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0875.c [2021-12-17 07:49:54,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07883b1f7/83112f9a0e9442298b7cced16aa5197d/FLAGb00f986ac [2021-12-17 07:49:54,717 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:49:54,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0875.c [2021-12-17 07:49:54,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07883b1f7/83112f9a0e9442298b7cced16aa5197d/FLAGb00f986ac [2021-12-17 07:49:54,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07883b1f7/83112f9a0e9442298b7cced16aa5197d [2021-12-17 07:49:54,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:49:54,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:49:54,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:49:54,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:49:54,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:49:54,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:54" (1/1) ... [2021-12-17 07:49:54,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551c7314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:54, skipping insertion in model container [2021-12-17 07:49:54,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:54" (1/1) ... [2021-12-17 07:49:54,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:49:54,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:49:54,999 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 07:49:55,005 INFO L158 Benchmark]: Toolchain (without parser) took 260.33ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 92.2MB in the end (delta: 596.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:49:55,005 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:49:55,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.98ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 92.2MB in the end (delta: 596.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:49:55,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.98ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 92.2MB in the end (delta: 596.9kB). 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_0875.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 027149746a3758b07c50ff16b2dbdfe672cfd188ffc035544f53bfbbaccdb52e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:49:56,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:49:56,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:49:56,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:49:56,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:49:56,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:49:56,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:49:56,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:49:56,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:49:56,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:49:56,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:49:56,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:49:56,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:49:56,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:49:56,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:49:56,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:49:56,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:49:56,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:49:56,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:49:56,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:49:56,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:49:56,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:49:56,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:49:56,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:49:56,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:49:56,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:49:56,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:49:56,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:49:56,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:49:56,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:49:56,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:49:56,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:49:56,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:49:56,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:49:56,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:49:56,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:49:56,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:49:56,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:49:56,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:49:56,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:49:56,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:49:56,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:49:56,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:49:56,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:49:56,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:49:56,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:49:56,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:49:56,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:49:56,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:49:56,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:49:56,868 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:49:56,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:49:56,868 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:49:56,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:49:56,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:49:56,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:49:56,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:49:56,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:49:56,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:49:56,869 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:49:56,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:49:56,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:49:56,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:49:56,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:49:56,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:49:56,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:49:56,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:49:56,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:49:56,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:49:56,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:49:56,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:49:56,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:49:56,871 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:49:56,872 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:49:56,872 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:49:56,872 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:49:56,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:49:56,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:49:56,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:49:56,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 027149746a3758b07c50ff16b2dbdfe672cfd188ffc035544f53bfbbaccdb52e [2021-12-17 07:49:57,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:49:57,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:49:57,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:49:57,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:49:57,255 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:49:57,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0875.c [2021-12-17 07:49:57,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc3c40ec/bdc8df7e662743f1aa3d0e717f50d915/FLAG730a80f39 [2021-12-17 07:49:57,684 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:49:57,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0875.c [2021-12-17 07:49:57,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc3c40ec/bdc8df7e662743f1aa3d0e717f50d915/FLAG730a80f39 [2021-12-17 07:49:58,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc3c40ec/bdc8df7e662743f1aa3d0e717f50d915 [2021-12-17 07:49:58,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:49:58,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:49:58,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:49:58,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:49:58,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:49:58,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5c80c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58, skipping insertion in model container [2021-12-17 07:49:58,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:49:58,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:49:58,394 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_0875.c[14084,14097] [2021-12-17 07:49:58,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:49:58,414 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:49:58,512 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_0875.c[14084,14097] [2021-12-17 07:49:58,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:49:58,529 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:49:58,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58 WrapperNode [2021-12-17 07:49:58,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:49:58,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:49:58,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:49:58,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:49:58,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,607 INFO L137 Inliner]: procedures = 26, calls = 193, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 739 [2021-12-17 07:49:58,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:49:58,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:49:58,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:49:58,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:49:58,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:49:58,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:49:58,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:49:58,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:49:58,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (1/1) ... [2021-12-17 07:49:58,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:49:58,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:49:58,708 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 07:49:58,719 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 07:49:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-17 07:49:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-17 07:49:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-12-17 07:49:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-12-17 07:49:58,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-17 07:49:58,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:49:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:49:58,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:49:58,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:49:58,824 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:49:58,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:50:24,673 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:50:24,678 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:50:24,678 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-12-17 07:50:24,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:50:24 BoogieIcfgContainer [2021-12-17 07:50:24,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:50:24,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:50:24,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:50:24,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:50:24,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:49:58" (1/3) ... [2021-12-17 07:50:24,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5527b63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:50:24, skipping insertion in model container [2021-12-17 07:50:24,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:49:58" (2/3) ... [2021-12-17 07:50:24,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5527b63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:50:24, skipping insertion in model container [2021-12-17 07:50:24,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:50:24" (3/3) ... [2021-12-17 07:50:24,698 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0875.c [2021-12-17 07:50:24,701 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:50:24,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:50:24,738 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:50:24,743 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 07:50:24,743 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:50:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 192 states have internal predecessors, (328), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:50:24,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-17 07:50:24,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:24,774 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 07:50:24,774 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:24,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash 703028076, now seen corresponding path program 1 times [2021-12-17 07:50:24,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:24,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413523506] [2021-12-17 07:50:24,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:24,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:24,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:24,813 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 07:50:24,815 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 07:50:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:25,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:50:25,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:25,647 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 07:50:25,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:25,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:25,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413523506] [2021-12-17 07:50:25,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413523506] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:25,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:25,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:50:25,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664746963] [2021-12-17 07:50:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:25,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:50:25,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:50:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:50:25,672 INFO L87 Difference]: Start difference. First operand has 200 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 192 states have internal predecessors, (328), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:25,727 INFO L93 Difference]: Finished difference Result 397 states and 677 transitions. [2021-12-17 07:50:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:50:25,729 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-17 07:50:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:25,735 INFO L225 Difference]: With dead ends: 397 [2021-12-17 07:50:25,735 INFO L226 Difference]: Without dead ends: 196 [2021-12-17 07:50:25,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 07:50:25,740 INFO L933 BasicCegarLoop]: 265 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, 265 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 07:50:25,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:50:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-17 07:50:25,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-12-17 07:50:25,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3297872340425532) internal successors, (250), 188 states have internal predecessors, (250), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:50:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 260 transitions. [2021-12-17 07:50:25,774 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 260 transitions. Word has length 18 [2021-12-17 07:50:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:25,775 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 260 transitions. [2021-12-17 07:50:25,775 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2021-12-17 07:50:25,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-17 07:50:25,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:25,776 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] [2021-12-17 07:50:25,828 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 07:50:25,995 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 07:50:25,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1530787270, now seen corresponding path program 1 times [2021-12-17 07:50:25,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:25,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956316557] [2021-12-17 07:50:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:25,997 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:25,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:26,004 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 07:50:26,005 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 07:50:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:26,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:50:26,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:27,565 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 07:50:27,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:27,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:27,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956316557] [2021-12-17 07:50:27,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956316557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:27,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:27,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:50:27,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928297195] [2021-12-17 07:50:27,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:27,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:50:27,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:50:27,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:50:27,568 INFO L87 Difference]: Start difference. First operand 196 states and 260 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:27,605 INFO L93 Difference]: Finished difference Result 205 states and 269 transitions. [2021-12-17 07:50:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:50:27,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-17 07:50:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:27,608 INFO L225 Difference]: With dead ends: 205 [2021-12-17 07:50:27,609 INFO L226 Difference]: Without dead ends: 196 [2021-12-17 07:50:27,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 07:50:27,610 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1236 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 07:50:27,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1236 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2021-12-17 07:50:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-17 07:50:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-12-17 07:50:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.324468085106383) internal successors, (249), 188 states have internal predecessors, (249), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:50:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 259 transitions. [2021-12-17 07:50:27,625 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 259 transitions. Word has length 22 [2021-12-17 07:50:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:27,627 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 259 transitions. [2021-12-17 07:50:27,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 259 transitions. [2021-12-17 07:50:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 07:50:27,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:27,628 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] [2021-12-17 07:50:27,655 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 07:50:27,831 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 07:50:27,832 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:27,832 INFO L85 PathProgramCache]: Analyzing trace with hash 459364139, now seen corresponding path program 1 times [2021-12-17 07:50:27,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:27,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348045310] [2021-12-17 07:50:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:27,833 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:27,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:27,839 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 07:50:27,840 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 07:50:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:28,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-17 07:50:28,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:29,693 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 07:50:29,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:29,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:29,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348045310] [2021-12-17 07:50:29,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348045310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:29,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:29,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 07:50:29,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513339093] [2021-12-17 07:50:29,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:29,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 07:50:29,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:29,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 07:50:29,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 07:50:29,694 INFO L87 Difference]: Start difference. First operand 196 states and 259 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:33,168 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 [] [2021-12-17 07:50:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:50:33,287 INFO L93 Difference]: Finished difference Result 214 states and 277 transitions. [2021-12-17 07:50:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 07:50:33,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-17 07:50:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:50:33,290 INFO L225 Difference]: With dead ends: 214 [2021-12-17 07:50:33,290 INFO L226 Difference]: Without dead ends: 205 [2021-12-17 07:50:33,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 07:50:33,291 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 10 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-17 07:50:33,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1450 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 42 Unchecked, 3.6s Time] [2021-12-17 07:50:33,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-17 07:50:33,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 196. [2021-12-17 07:50:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3191489361702127) internal successors, (248), 188 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:50:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 258 transitions. [2021-12-17 07:50:33,304 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 258 transitions. Word has length 24 [2021-12-17 07:50:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:50:33,304 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 258 transitions. [2021-12-17 07:50:33,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 258 transitions. [2021-12-17 07:50:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 07:50:33,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:50:33,305 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] [2021-12-17 07:50:33,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-17 07:50:33,513 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 07:50:33,514 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:50:33,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:50:33,518 INFO L85 PathProgramCache]: Analyzing trace with hash 461211181, now seen corresponding path program 1 times [2021-12-17 07:50:33,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:50:33,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564482642] [2021-12-17 07:50:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:50:33,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:50:33,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:50:33,521 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 07:50:33,522 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 07:50:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:50:34,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-17 07:50:34,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:50:34,525 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 07:50:35,029 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-12-17 07:50:35,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-12-17 07:50:37,279 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-17 07:50:37,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 35 [2021-12-17 07:50:38,189 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 35 treesize of output 19 [2021-12-17 07:50:39,931 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 07:50:39,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:50:39,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:50:39,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564482642] [2021-12-17 07:50:39,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564482642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:50:39,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:50:39,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 07:50:39,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905843521] [2021-12-17 07:50:39,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:50:39,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 07:50:39,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:50:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 07:50:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-17 07:50:39,933 INFO L87 Difference]: Start difference. First operand 196 states and 258 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:50:41,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:44,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:47,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:49,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:52,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:54,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:56,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:50:58,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:01,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:03,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:05,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:07,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:10,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:51:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:13,247 INFO L93 Difference]: Finished difference Result 205 states and 267 transitions. [2021-12-17 07:51:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 07:51:13,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-17 07:51:13,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:13,260 INFO L225 Difference]: With dead ends: 205 [2021-12-17 07:51:13,260 INFO L226 Difference]: Without dead ends: 195 [2021-12-17 07:51:13,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-17 07:51:13,261 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 2 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:13,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2132 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 10 Unknown, 284 Unchecked, 33.0s Time] [2021-12-17 07:51:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-12-17 07:51:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-12-17 07:51:13,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.3155080213903743) internal successors, (246), 187 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 256 transitions. [2021-12-17 07:51:13,271 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 256 transitions. Word has length 24 [2021-12-17 07:51:13,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:13,271 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 256 transitions. [2021-12-17 07:51:13,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:13,272 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 256 transitions. [2021-12-17 07:51:13,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 07:51:13,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:13,273 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] [2021-12-17 07:51:13,300 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 07:51:13,475 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 07:51:13,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1729146785, now seen corresponding path program 1 times [2021-12-17 07:51:13,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:13,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960491695] [2021-12-17 07:51:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:13,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:13,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:13,477 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 07:51:13,479 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 07:51:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:14,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-17 07:51:14,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:14,353 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 07:51:14,793 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-12-17 07:51:14,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-12-17 07:51:16,858 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 33 treesize of output 17 [2021-12-17 07:51:18,825 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 07:51:18,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:18,825 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:18,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960491695] [2021-12-17 07:51:18,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960491695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:18,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:18,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 07:51:18,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696867327] [2021-12-17 07:51:18,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:18,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 07:51:18,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:18,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 07:51:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:51:18,826 INFO L87 Difference]: Start difference. First operand 195 states and 256 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:19,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:19,108 INFO L93 Difference]: Finished difference Result 245 states and 325 transitions. [2021-12-17 07:51:19,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 07:51:19,109 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 07:51:19,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:19,112 INFO L225 Difference]: With dead ends: 245 [2021-12-17 07:51:19,113 INFO L226 Difference]: Without dead ends: 236 [2021-12-17 07:51:19,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-17 07:51:19,116 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 59 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 298 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:19,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 2175 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 298 Unchecked, 0.1s Time] [2021-12-17 07:51:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-12-17 07:51:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 197. [2021-12-17 07:51:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 189 states have (on average 1.3174603174603174) internal successors, (249), 189 states have internal predecessors, (249), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 259 transitions. [2021-12-17 07:51:19,140 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 259 transitions. Word has length 26 [2021-12-17 07:51:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:19,141 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 259 transitions. [2021-12-17 07:51:19,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 259 transitions. [2021-12-17 07:51:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-17 07:51:19,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:19,142 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] [2021-12-17 07:51:19,170 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 07:51:19,367 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 07:51:19,367 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:19,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash -473442065, now seen corresponding path program 1 times [2021-12-17 07:51:19,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:19,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121235455] [2021-12-17 07:51:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:19,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:19,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:19,370 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 07:51:19,370 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 07:51:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:20,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:51:20,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:21,289 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 07:51:21,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:21,289 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:21,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121235455] [2021-12-17 07:51:21,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121235455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:21,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:21,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:51:21,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981803246] [2021-12-17 07:51:21,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:21,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:51:21,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:51:21,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:21,290 INFO L87 Difference]: Start difference. First operand 197 states and 259 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:21,298 INFO L93 Difference]: Finished difference Result 370 states and 483 transitions. [2021-12-17 07:51:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:51:21,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-12-17 07:51:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:21,300 INFO L225 Difference]: With dead ends: 370 [2021-12-17 07:51:21,300 INFO L226 Difference]: Without dead ends: 197 [2021-12-17 07:51:21,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:21,304 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 1 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:21,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1204 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2021-12-17 07:51:21,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-12-17 07:51:21,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-12-17 07:51:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 189 states have (on average 1.312169312169312) internal successors, (248), 189 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 258 transitions. [2021-12-17 07:51:21,315 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 258 transitions. Word has length 27 [2021-12-17 07:51:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:21,316 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 258 transitions. [2021-12-17 07:51:21,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 258 transitions. [2021-12-17 07:51:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-17 07:51:21,320 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:21,320 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] [2021-12-17 07:51:21,373 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 07:51:21,543 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 07:51:21,543 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2040376084, now seen corresponding path program 1 times [2021-12-17 07:51:21,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:21,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87154995] [2021-12-17 07:51:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:21,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:21,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:21,547 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 07:51:21,565 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 07:51:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:22,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-17 07:51:22,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:22,514 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 07:51:22,942 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-12-17 07:51:22,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-12-17 07:51:25,029 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 33 treesize of output 17 [2021-12-17 07:51:27,316 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 07:51:27,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:27,317 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:27,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87154995] [2021-12-17 07:51:27,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87154995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:27,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:27,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 07:51:27,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77472745] [2021-12-17 07:51:27,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:27,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 07:51:27,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:27,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 07:51:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 07:51:27,319 INFO L87 Difference]: Start difference. First operand 197 states and 258 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:27,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:27,561 INFO L93 Difference]: Finished difference Result 215 states and 276 transitions. [2021-12-17 07:51:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 07:51:27,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-12-17 07:51:27,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:27,569 INFO L225 Difference]: With dead ends: 215 [2021-12-17 07:51:27,569 INFO L226 Difference]: Without dead ends: 206 [2021-12-17 07:51:27,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:51:27,571 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 63 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 243 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:27,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 1912 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 243 Unchecked, 0.0s Time] [2021-12-17 07:51:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-12-17 07:51:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 196. [2021-12-17 07:51:27,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3085106382978724) internal successors, (246), 188 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 256 transitions. [2021-12-17 07:51:27,589 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 256 transitions. Word has length 27 [2021-12-17 07:51:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:27,590 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 256 transitions. [2021-12-17 07:51:27,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 256 transitions. [2021-12-17 07:51:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-17 07:51:27,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:27,593 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] [2021-12-17 07:51:27,636 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 07:51:27,811 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 07:51:27,811 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:27,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:27,812 INFO L85 PathProgramCache]: Analyzing trace with hash 584731612, now seen corresponding path program 1 times [2021-12-17 07:51:27,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:27,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063991322] [2021-12-17 07:51:27,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:27,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:27,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:27,814 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 07:51:27,815 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 07:51:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:28,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:51:28,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:29,749 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 07:51:29,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:29,750 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:29,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063991322] [2021-12-17 07:51:29,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063991322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:29,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:29,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:51:29,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725992128] [2021-12-17 07:51:29,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:29,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:51:29,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:51:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:29,751 INFO L87 Difference]: Start difference. First operand 196 states and 256 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:29,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:29,756 INFO L93 Difference]: Finished difference Result 370 states and 482 transitions. [2021-12-17 07:51:29,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:51:29,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-12-17 07:51:29,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:29,757 INFO L225 Difference]: With dead ends: 370 [2021-12-17 07:51:29,757 INFO L226 Difference]: Without dead ends: 197 [2021-12-17 07:51:29,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:29,759 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 1 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:29,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1199 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2021-12-17 07:51:29,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-12-17 07:51:29,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2021-12-17 07:51:29,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3085106382978724) internal successors, (246), 188 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 256 transitions. [2021-12-17 07:51:29,765 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 256 transitions. Word has length 28 [2021-12-17 07:51:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:29,765 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 256 transitions. [2021-12-17 07:51:29,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 256 transitions. [2021-12-17 07:51:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 07:51:29,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:29,768 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] [2021-12-17 07:51:29,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:29,983 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 07:51:29,983 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1223723038, now seen corresponding path program 1 times [2021-12-17 07:51:29,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:29,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892915733] [2021-12-17 07:51:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:29,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:29,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:29,990 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:29,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-17 07:51:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:30,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-17 07:51:30,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:30,932 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 07:51:31,405 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-12-17 07:51:31,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-12-17 07:51:33,353 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 33 treesize of output 17 [2021-12-17 07:51:36,259 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 07:51:36,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:36,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:36,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892915733] [2021-12-17 07:51:36,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892915733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:36,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:36,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-17 07:51:36,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494161970] [2021-12-17 07:51:36,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:36,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 07:51:36,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:36,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 07:51:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:51:36,261 INFO L87 Difference]: Start difference. First operand 196 states and 256 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:36,523 INFO L93 Difference]: Finished difference Result 210 states and 272 transitions. [2021-12-17 07:51:36,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 07:51:36,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 07:51:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:36,525 INFO L225 Difference]: With dead ends: 210 [2021-12-17 07:51:36,525 INFO L226 Difference]: Without dead ends: 199 [2021-12-17 07:51:36,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-17 07:51:36,527 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 4 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 267 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:36,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2159 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 267 Unchecked, 0.1s Time] [2021-12-17 07:51:36,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-17 07:51:36,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-12-17 07:51:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 191 states have (on average 1.3036649214659686) internal successors, (249), 191 states have internal predecessors, (249), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2021-12-17 07:51:36,533 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 29 [2021-12-17 07:51:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:36,533 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2021-12-17 07:51:36,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2021-12-17 07:51:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 07:51:36,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:36,534 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] [2021-12-17 07:51:36,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-17 07:51:36,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:36,736 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash -887295623, now seen corresponding path program 1 times [2021-12-17 07:51:36,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:36,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745176016] [2021-12-17 07:51:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:36,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:36,738 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:36,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-17 07:51:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:37,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 07:51:37,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:38,137 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 07:51:38,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:38,137 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:38,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745176016] [2021-12-17 07:51:38,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745176016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:38,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:38,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:51:38,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587633456] [2021-12-17 07:51:38,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:38,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:51:38,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:38,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:51:38,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:51:38,138 INFO L87 Difference]: Start difference. First operand 199 states and 259 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:38,142 INFO L93 Difference]: Finished difference Result 209 states and 269 transitions. [2021-12-17 07:51:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:51:38,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 07:51:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:38,149 INFO L225 Difference]: With dead ends: 209 [2021-12-17 07:51:38,149 INFO L226 Difference]: Without dead ends: 199 [2021-12-17 07:51:38,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 07:51:38,150 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 11 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:38,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 944 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2021-12-17 07:51:38,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-17 07:51:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-12-17 07:51:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 191 states have (on average 1.2984293193717278) internal successors, (248), 191 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 258 transitions. [2021-12-17 07:51:38,155 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 258 transitions. Word has length 29 [2021-12-17 07:51:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:38,156 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 258 transitions. [2021-12-17 07:51:38,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 258 transitions. [2021-12-17 07:51:38,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 07:51:38,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:38,157 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] [2021-12-17 07:51:38,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:38,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:38,379 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:38,380 INFO L85 PathProgramCache]: Analyzing trace with hash -830037321, now seen corresponding path program 1 times [2021-12-17 07:51:38,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:38,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148277346] [2021-12-17 07:51:38,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:38,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:38,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:38,381 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:38,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-17 07:51:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:39,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 07:51:39,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:40,349 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 07:51:40,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:40,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:40,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148277346] [2021-12-17 07:51:40,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148277346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:40,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:40,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:51:40,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995680994] [2021-12-17 07:51:40,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:40,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:51:40,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:40,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:51:40,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:40,350 INFO L87 Difference]: Start difference. First operand 199 states and 258 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:40,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:40,390 INFO L93 Difference]: Finished difference Result 218 states and 277 transitions. [2021-12-17 07:51:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:51:40,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 07:51:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:40,391 INFO L225 Difference]: With dead ends: 218 [2021-12-17 07:51:40,391 INFO L226 Difference]: Without dead ends: 215 [2021-12-17 07:51:40,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:40,392 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 232 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:40,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1003 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2021-12-17 07:51:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-17 07:51:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 201. [2021-12-17 07:51:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 193 states have (on average 1.2953367875647668) internal successors, (250), 193 states have internal predecessors, (250), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:51:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2021-12-17 07:51:40,397 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 29 [2021-12-17 07:51:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:40,398 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2021-12-17 07:51:40,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2021-12-17 07:51:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 07:51:40,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:40,398 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] [2021-12-17 07:51:40,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:40,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:40,619 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 908237047, now seen corresponding path program 1 times [2021-12-17 07:51:40,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:40,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672249108] [2021-12-17 07:51:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:40,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:40,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:40,622 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:40,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-17 07:51:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:41,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:51:41,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:42,413 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 07:51:42,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:42,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:42,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672249108] [2021-12-17 07:51:42,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672249108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:42,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:42,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:51:42,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209970942] [2021-12-17 07:51:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:42,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:51:42,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:42,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:51:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:42,414 INFO L87 Difference]: Start difference. First operand 201 states and 260 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:42,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:42,416 INFO L93 Difference]: Finished difference Result 226 states and 286 transitions. [2021-12-17 07:51:42,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:51:42,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 07:51:42,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:42,417 INFO L225 Difference]: With dead ends: 226 [2021-12-17 07:51:42,417 INFO L226 Difference]: Without dead ends: 42 [2021-12-17 07:51:42,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:51:42,417 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:42,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 154 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2021-12-17 07:51:42,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-17 07:51:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-17 07:51:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 39 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-12-17 07:51:42,419 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 29 [2021-12-17 07:51:42,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:42,419 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-12-17 07:51:42,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-12-17 07:51:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-17 07:51:42,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:42,420 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] [2021-12-17 07:51:42,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-17 07:51:42,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:42,621 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:42,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:42,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2068898703, now seen corresponding path program 1 times [2021-12-17 07:51:42,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:42,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436425187] [2021-12-17 07:51:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:42,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:42,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:42,623 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:42,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-17 07:51:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:43,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-17 07:51:43,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:43,592 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 07:51:44,034 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-12-17 07:51:44,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-12-17 07:51:46,054 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 33 treesize of output 17 [2021-12-17 07:51:48,797 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 07:51:48,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:48,798 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:48,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436425187] [2021-12-17 07:51:48,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436425187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:48,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:48,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 07:51:48,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073483180] [2021-12-17 07:51:48,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:48,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 07:51:48,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 07:51:48,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 07:51:48,800 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:49,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:49,016 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-12-17 07:51:49,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 07:51:49,016 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-17 07:51:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:49,017 INFO L225 Difference]: With dead ends: 49 [2021-12-17 07:51:49,017 INFO L226 Difference]: Without dead ends: 38 [2021-12-17 07:51:49,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:51:49,018 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:49,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 187 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 39 Unchecked, 0.0s Time] [2021-12-17 07:51:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-17 07:51:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2021-12-17 07:51:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.03125) internal successors, (33), 32 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-12-17 07:51:49,020 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 30 [2021-12-17 07:51:49,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:49,020 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-12-17 07:51:49,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-12-17 07:51:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-17 07:51:49,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:51:49,021 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] [2021-12-17 07:51:49,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:49,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:49,236 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:51:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:51:49,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1894162700, now seen corresponding path program 1 times [2021-12-17 07:51:49,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:51:49,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327305566] [2021-12-17 07:51:49,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:51:49,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:51:49,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:51:49,246 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:51:49,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-17 07:51:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:51:50,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-17 07:51:50,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:51:52,473 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 07:51:52,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:51:52,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:51:52,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327305566] [2021-12-17 07:51:52,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327305566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:51:52,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:51:52,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 07:51:52,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49380676] [2021-12-17 07:51:52,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:51:52,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 07:51:52,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:51:52,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 07:51:52,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 07:51:52,474 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:52,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:51:52,768 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-12-17 07:51:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 07:51:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-12-17 07:51:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:51:52,768 INFO L225 Difference]: With dead ends: 35 [2021-12-17 07:51:52,769 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:51:52,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 07:51:52,769 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:51:52,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 204 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time] [2021-12-17 07:51:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:51:52,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:51:52,770 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 07:51:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:51:52,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-12-17 07:51:52,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:51:52,771 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:51:52,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 07:51:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:51:52,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:51:52,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:51:52,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-12-17 07:51:52,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:51:52,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:51:54,416 INFO L858 garLoopResultBuilder]: For program point L259-2(lines 259 263) no Hoare annotation was computed. [2021-12-17 07:51:54,416 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 252 265) no Hoare annotation was computed. [2021-12-17 07:51:54,416 INFO L858 garLoopResultBuilder]: For program point L254-1(lines 254 258) no Hoare annotation was computed. [2021-12-17 07:51:54,416 INFO L854 garLoopResultBuilder]: At program point L254-2(lines 254 258) the Hoare annotation is: (or (= fabs_float_~x |fabs_float_#in~x|) (forall ((currentRoundingMode RoundingMode)) (not (= ~zero_pow~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))) [2021-12-17 07:51:54,416 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 252 265) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 252 265) the Hoare annotation is: true [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 263) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L259-1(lines 252 265) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 188) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 193) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-12-17 07:51:54,417 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 177 195) the Hoare annotation is: true [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L179-1(lines 179 183) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L861 garLoopResultBuilder]: At program point L179-2(lines 179 183) the Hoare annotation is: true [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 177 195) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L854 garLoopResultBuilder]: At program point L597(lines 588 598) the Hoare annotation is: (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 533) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L531-2(lines 522 534) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 533) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 433 437) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 368) no Hoare annotation was computed. [2021-12-17 07:51:54,418 INFO L854 garLoopResultBuilder]: At program point L433-2(lines 433 437) the Hoare annotation is: false [2021-12-17 07:51:54,418 INFO L858 garLoopResultBuilder]: For program point L170-1(lines 170 174) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L854 garLoopResultBuilder]: At program point L170-2(lines 170 174) the Hoare annotation is: false [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L170-3(lines 170 174) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L501(lines 501 502) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 410) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 402 410) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L303-1(lines 303 307) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L854 garLoopResultBuilder]: At program point L303-2(lines 303 307) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ~zero_pow~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_fabs_float_~#sf_u~6.base_7| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_fabs_float_~#sf_u~6.base_7|) (_ bv0 32)))) (and (= |ULTIMATE.start___ieee754_powf_~x#1| (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (= .cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_1)) (= |ULTIMATE.start___ieee754_powf_~y#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (fp.gt (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) ((_ to_fp 8 24) currentRoundingMode (_ bv1 32))))))) [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 243) no Hoare annotation was computed. [2021-12-17 07:51:54,419 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 205 209) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L854 garLoopResultBuilder]: At program point L205-2(lines 205 209) the Hoare annotation is: false [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L205-3(lines 205 209) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L139-2(lines 139 140) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 507) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L438-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:54,420 INFO L858 garLoopResultBuilder]: For program point L405-1(lines 405 409) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L854 garLoopResultBuilder]: At program point L405-2(lines 405 409) the Hoare annotation is: false [2021-12-17 07:51:54,421 INFO L854 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: false [2021-12-17 07:51:54,421 INFO L858 garLoopResultBuilder]: For program point L240-1(line 240) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L858 garLoopResultBuilder]: For program point L538(lines 538 550) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 571 575) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L854 garLoopResultBuilder]: At program point L571-2(lines 571 575) the Hoare annotation is: false [2021-12-17 07:51:54,421 INFO L858 garLoopResultBuilder]: For program point L538-2(lines 538 550) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L858 garLoopResultBuilder]: For program point L571-3(lines 571 575) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 472 476) no Hoare annotation was computed. [2021-12-17 07:51:54,421 INFO L854 garLoopResultBuilder]: At program point L472-2(lines 472 476) the Hoare annotation is: false [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 374) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 343) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L854 garLoopResultBuilder]: At program point L175(lines 111 176) the Hoare annotation is: false [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L341(line 341) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L341-2(line 341) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2021-12-17 07:51:54,422 INFO L854 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: false [2021-12-17 07:51:54,422 INFO L858 garLoopResultBuilder]: For program point L242-1(line 242) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 499) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L375-2(lines 375 499) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 541 545) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L854 garLoopResultBuilder]: At program point L541-2(lines 541 545) the Hoare annotation is: false [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 512) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L541-3(lines 541 545) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L343(line 343) no Hoare annotation was computed. [2021-12-17 07:51:54,423 INFO L858 garLoopResultBuilder]: For program point L343-2(line 343) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 378) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 213) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 249) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L854 garLoopResultBuilder]: At program point L245-2(lines 245 249) the Hoare annotation is: false [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L245-3(lines 245 249) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 481) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L477-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:54,424 INFO L858 garLoopResultBuilder]: For program point L477-2(lines 477 481) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 350) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L378-2(line 378) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L854 garLoopResultBuilder]: At program point L147-2(lines 147 156) the Hoare annotation is: false [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L147-3(lines 111 176) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 584) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L379(lines 379 380) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 349) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L858 garLoopResultBuilder]: For program point L214(lines 214 215) no Hoare annotation was computed. [2021-12-17 07:51:54,425 INFO L854 garLoopResultBuilder]: At program point L611(line 611) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ~zero_pow~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (= |ULTIMATE.start_main_~y~0#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L611-1(lines 611 620) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L611-3(lines 611 620) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L380-2(line 380) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 153) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 153) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L854 garLoopResultBuilder]: At program point L116-2(lines 116 120) the Hoare annotation is: false [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2021-12-17 07:51:54,426 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 226) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L216-2(lines 216 226) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 548) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 580 584) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L854 garLoopResultBuilder]: At program point L580-2(lines 580 584) the Hoare annotation is: false [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L547-2(lines 547 548) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L580-3(lines 577 584) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 423) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 317) no Hoare annotation was computed. [2021-12-17 07:51:54,427 INFO L854 garLoopResultBuilder]: At program point L250(lines 201 251) the Hoare annotation is: false [2021-12-17 07:51:54,427 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L218-1(lines 218 222) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L854 garLoopResultBuilder]: At program point L218-2(lines 218 222) the Hoare annotation is: false [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L218-3(lines 218 222) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L516-1(lines 516 520) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L854 garLoopResultBuilder]: At program point L516-2(lines 516 520) the Hoare annotation is: false [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L516-3(lines 516 520) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 352) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L616(line 616) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L616-2(lines 616 619) no Hoare annotation was computed. [2021-12-17 07:51:54,428 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 324) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L858 garLoopResultBuilder]: For program point L617(line 617) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 356) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 323) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L854 garLoopResultBuilder]: At program point L353-2(lines 353 356) the Hoare annotation is: false [2021-12-17 07:51:54,429 INFO L854 garLoopResultBuilder]: At program point L585(lines 297 586) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_powf_#res#1| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-12-17 07:51:54,429 INFO L858 garLoopResultBuilder]: For program point L552-1(lines 552 556) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L854 garLoopResultBuilder]: At program point L552-2(lines 552 556) the Hoare annotation is: false [2021-12-17 07:51:54,429 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 355) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L858 garLoopResultBuilder]: For program point L387-1(lines 387 391) no Hoare annotation was computed. [2021-12-17 07:51:54,429 INFO L854 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: false [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 124) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 488 492) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L854 garLoopResultBuilder]: At program point L488-2(lines 488 492) the Hoare annotation is: false [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 225) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 167) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 534) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-12-17 07:51:54,430 INFO L861 garLoopResultBuilder]: At program point L622(lines 600 623) the Hoare annotation is: true [2021-12-17 07:51:54,430 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 428) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L424-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L358(line 358) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 424 428) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 561) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L557-2(lines 557 561) no Hoare annotation was computed. [2021-12-17 07:51:54,431 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 458 462) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L854 garLoopResultBuilder]: At program point L458-2(lines 458 462) the Hoare annotation is: false [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L392-1(lines 375 398) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 335) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L392-2(lines 392 396) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L326-1(lines 297 586) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 129) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L591-1(lines 591 595) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 527) no Hoare annotation was computed. [2021-12-17 07:51:54,432 INFO L854 garLoopResultBuilder]: At program point L591-2(lines 591 595) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___signbit_float_~x#1| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2021-12-17 07:51:54,432 INFO L858 garLoopResultBuilder]: For program point L591-3(lines 591 595) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 371) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 334) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 229) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 165) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 527) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2021-12-17 07:51:54,433 INFO L854 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: false [2021-12-17 07:51:54,433 INFO L858 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 363) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 334) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L362-2(lines 360 371) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 237) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 617) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 231 235) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L854 garLoopResultBuilder]: At program point L231-2(lines 231 235) the Hoare annotation is: false [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 136) no Hoare annotation was computed. [2021-12-17 07:51:54,434 INFO L858 garLoopResultBuilder]: For program point L231-3(lines 231 235) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L132-2(lines 132 136) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 467) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 398 499) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L463-2(lines 463 467) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 369) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L133-2(lines 133 134) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L854 garLoopResultBuilder]: At program point L133-3(lines 133 134) the Hoare annotation is: false [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L133-4(lines 133 134) no Hoare annotation was computed. [2021-12-17 07:51:54,435 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 368) no Hoare annotation was computed. [2021-12-17 07:51:54,436 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 333) no Hoare annotation was computed. [2021-12-17 07:51:54,438 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:51:54,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:51:54,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,453 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:51:54 BoogieIcfgContainer [2021-12-17 07:51:54,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:51:54,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:51:54,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:51:54,454 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:51:54,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:50:24" (3/4) ... [2021-12-17 07:51:54,457 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:51:54,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-12-17 07:51:54,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-12-17 07:51:54,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-17 07:51:54,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-17 07:51:54,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 07:51:54,469 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:51:54,482 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || (forall currentRoundingMode : FloatRoundingMode :: !(zero_pow == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) [2021-12-17 07:51:54,482 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: zero_pow == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) && (\exists v_arrayElimCell_1 : bv32, v_fabs_float_~#sf_u~6.base_7 : bv32, currentRoundingMode : FloatRoundingMode :: ((x == ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) && unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_1)) && y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && ~fp.gt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][31:31], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][30:23], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 1bv32))) [2021-12-17 07:51:54,511 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:51:54,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:51:54,512 INFO L158 Benchmark]: Toolchain (without parser) took 116427.61ms. Allocated memory was 46.1MB in the beginning and 71.3MB in the end (delta: 25.2MB). Free memory was 29.9MB in the beginning and 35.6MB in the end (delta: -5.7MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,512 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory was 27.8MB in the beginning and 27.8MB in the end (delta: 36.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:51:54,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.00ms. Allocated memory was 46.1MB in the beginning and 58.7MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 28.2MB in the end (delta: 1.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.55ms. Allocated memory is still 58.7MB. Free memory was 28.2MB in the beginning and 39.1MB in the end (delta: -10.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,513 INFO L158 Benchmark]: Boogie Preprocessor took 75.51ms. Allocated memory is still 58.7MB. Free memory was 38.8MB in the beginning and 34.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,513 INFO L158 Benchmark]: RCFGBuilder took 25997.81ms. Allocated memory is still 58.7MB. Free memory was 34.4MB in the beginning and 22.2MB in the end (delta: 12.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,513 INFO L158 Benchmark]: TraceAbstraction took 89760.47ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 22.4MB in the end (delta: 25.9MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,513 INFO L158 Benchmark]: Witness Printer took 57.38ms. Allocated memory is still 71.3MB. Free memory was 22.4MB in the beginning and 35.6MB in the end (delta: -13.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:51:54,514 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 27.8MB in the beginning and 27.8MB in the end (delta: 36.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.00ms. Allocated memory was 46.1MB in the beginning and 58.7MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 28.2MB in the end (delta: 1.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.55ms. Allocated memory is still 58.7MB. Free memory was 28.2MB in the beginning and 39.1MB in the end (delta: -10.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.51ms. Allocated memory is still 58.7MB. Free memory was 38.8MB in the beginning and 34.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 25997.81ms. Allocated memory is still 58.7MB. Free memory was 34.4MB in the beginning and 22.2MB in the end (delta: 12.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 89760.47ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 22.4MB in the end (delta: 25.9MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 57.38ms. Allocated memory is still 71.3MB. Free memory was 22.4MB in the beginning and 35.6MB in the end (delta: -13.2MB). Peak memory consumption was 4.2MB. 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] - 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[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,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[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,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[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,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[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,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: 617]: 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 3 procedures, 200 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 89.7s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 390 SdHoareTripleChecker+Valid, 36.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 390 mSDsluCounter, 16224 SdHoareTripleChecker+Invalid, 35.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1362 IncrementalHoareTripleChecker+Unchecked, 13399 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2825 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 367 GetRequests, 279 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=11, InterpolantAutomatonStates: 108, 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, 14 MinimizatonAttempts, 76 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 65 PreInvPairs, 71 NumberOfFragments, 130 HoareAnnotationTreeSize, 65 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 212 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 9.7s SatisfiabilityAnalysisTime, 35.7s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 361 ConstructedInterpolants, 205 QuantifiedInterpolants, 4931 SizeOfPredicates, 111 NumberOfNonLiveVariables, 2273 ConjunctsInSsa, 210 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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: 254]: Loop Invariant [2021-12-17 07:51:54,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: x == \old(x) || (forall currentRoundingMode : FloatRoundingMode :: !(zero_pow == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant [2021-12-17 07:51:54,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) - 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: 588]: Loop Invariant Derived loop invariant: \result == 0bv32 - 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: 591]: Loop Invariant [2021-12-17 07:51:54,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) - 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 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_7,QUANTIFIED] [2021-12-17 07:51:54,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: zero_pow == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) && (\exists v_arrayElimCell_1 : bv32, v_fabs_float_~#sf_u~6.base_7 : bv32, currentRoundingMode : FloatRoundingMode :: ((x == ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) && unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_1)) && y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && ~fp.gt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][31:31], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][30:23], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_7][0bv32][22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 1bv32))) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - 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 07:51:54,730 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 07:51:54,763 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