./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y --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 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:25:14,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:25:14,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:25:14,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:25:14,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:25:14,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:25:14,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:25:14,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:25:14,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:25:14,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:25:14,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:25:14,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:25:14,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:25:14,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:25:14,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:25:14,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:25:14,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:25:14,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:25:14,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:25:14,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:25:14,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:25:14,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:25:14,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:25:14,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:25:14,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:25:14,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:25:14,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:25:14,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:25:14,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:25:14,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:25:14,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:25:14,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:25:14,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:25:14,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:25:14,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:25:14,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:25:14,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:25:14,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:25:14,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:25:14,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:25:14,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:25:14,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:25:14,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:25:14,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:25:14,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:25:14,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:25:14,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:25:14,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:25:14,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:25:14,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:25:14,948 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:25:14,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:25:14,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:25:14,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:25:14,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:25:14,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:25:14,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:25:14,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:25:14,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:25:14,951 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:25:14,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:25:14,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:25:14,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:25:14,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:25:14,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:25:14,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:25:14,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:25:14,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:25:14,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:25:14,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:25:14,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:25:14,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:25:14,955 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:25:14,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:25:14,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:25:14,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:25:14,956 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 [2021-11-13 18:25:15,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:25:15,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:25:15,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:25:15,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:25:15,250 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:25:15,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-13 18:25:15,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/3b66169e2/e45dab4b6d764d07b76e8928fc1f3355/FLAG6d44333d0 [2021-11-13 18:25:15,941 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:25:15,942 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-13 18:25:15,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/3b66169e2/e45dab4b6d764d07b76e8928fc1f3355/FLAG6d44333d0 [2021-11-13 18:25:16,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/3b66169e2/e45dab4b6d764d07b76e8928fc1f3355 [2021-11-13 18:25:16,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:25:16,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:25:16,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:25:16,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:25:16,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:25:16,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:16" (1/1) ... [2021-11-13 18:25:16,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f14ca70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:16, skipping insertion in model container [2021-11-13 18:25:16,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:16" (1/1) ... [2021-11-13 18:25:16,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:25:16,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:25:16,978 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1759) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1103) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1598) 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:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) 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:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) 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) [2021-11-13 18:25:16,984 INFO L158 Benchmark]: Toolchain (without parser) took 658.03ms. Allocated memory is still 104.9MB. Free memory was 61.1MB in the beginning and 75.5MB in the end (delta: -14.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-13 18:25:16,986 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:25:16,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.56ms. Allocated memory is still 104.9MB. Free memory was 60.8MB in the beginning and 75.5MB in the end (delta: -14.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-13 18:25:16,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.56ms. Allocated memory is still 104.9MB. Free memory was 60.8MB in the beginning and 75.5MB in the end (delta: -14.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- 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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y --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 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:25:19,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:25:19,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:25:19,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:25:19,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:25:19,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:25:19,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:25:19,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:25:19,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:25:19,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:25:19,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:25:19,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:25:19,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:25:19,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:25:19,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:25:19,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:25:19,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:25:19,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:25:19,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:25:19,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:25:19,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:25:19,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:25:19,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:25:19,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:25:19,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:25:19,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:25:19,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:25:19,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:25:19,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:25:19,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:25:19,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:25:19,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:25:19,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:25:19,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:25:19,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:25:19,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:25:19,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:25:19,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:25:19,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:25:19,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:25:19,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:25:19,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:25:19,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:25:19,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:25:19,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:25:19,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:25:19,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:25:19,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:25:19,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:25:19,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:25:19,422 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:25:19,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:25:19,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:25:19,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:25:19,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:25:19,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:25:19,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:25:19,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:25:19,425 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:25:19,425 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:25:19,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:25:19,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:25:19,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:25:19,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:25:19,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:25:19,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:25:19,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:25:19,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:25:19,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:25:19,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:25:19,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:25:19,428 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:25:19,428 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:25:19,428 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:25:19,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:25:19,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:25:19,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:25:19,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:25:19,429 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 [2021-11-13 18:25:19,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:25:19,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:25:19,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:25:19,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:25:19,839 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:25:19,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-13 18:25:19,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/104baf3cc/e3fed6f49a6f429893b9b9c4d5d95364/FLAG0d1713d6e [2021-11-13 18:25:20,565 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:25:20,566 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-13 18:25:20,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/104baf3cc/e3fed6f49a6f429893b9b9c4d5d95364/FLAG0d1713d6e [2021-11-13 18:25:20,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/data/104baf3cc/e3fed6f49a6f429893b9b9c4d5d95364 [2021-11-13 18:25:20,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:25:20,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:25:20,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:25:20,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:25:20,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:25:20,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:20" (1/1) ... [2021-11-13 18:25:20,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f20a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:20, skipping insertion in model container [2021-11-13 18:25:20,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:20" (1/1) ... [2021-11-13 18:25:20,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:25:20,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:25:21,502 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-11-13 18:25:21,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-11-13 18:25:21,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-11-13 18:25:21,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-11-13 18:25:21,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-11-13 18:25:21,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-11-13 18:25:21,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-11-13 18:25:21,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:25:21,541 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:25:21,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-11-13 18:25:21,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-11-13 18:25:21,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-11-13 18:25:21,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-11-13 18:25:21,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-11-13 18:25:21,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-11-13 18:25:21,596 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-11-13 18:25:21,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:25:21,756 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:25:21,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21 WrapperNode [2021-11-13 18:25:21,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:25:21,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:25:21,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:25:21,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:25:21,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:25:21,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:25:21,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:25:21,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:25:21,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:25:21,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:25:21,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:25:21,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:25:21,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (1/1) ... [2021-11-13 18:25:21,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:25:21,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:25:21,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:25:21,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:25:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:25:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:25:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:25:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:25:22,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:25:22,161 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:25:22,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:22 BoogieIcfgContainer [2021-11-13 18:25:22,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:25:22,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:25:22,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:25:22,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:25:22,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:25:20" (1/3) ... [2021-11-13 18:25:22,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5122015a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:25:22, skipping insertion in model container [2021-11-13 18:25:22,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:21" (2/3) ... [2021-11-13 18:25:22,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5122015a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:25:22, skipping insertion in model container [2021-11-13 18:25:22,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:22" (3/3) ... [2021-11-13 18:25:22,171 INFO L111 eAbstractionObserver]: Analyzing ICFG float_lib2.i [2021-11-13 18:25:22,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:25:22,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-13 18:25:22,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:25:22,236 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 [2021-11-13 18:25:22,236 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-13 18:25:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 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) [2021-11-13 18:25:22,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 18:25:22,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:22,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 18:25:22,257 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-13 18:25:22,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:22,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47554054] [2021-11-13 18:25:22,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:22,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:22,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:22,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:22,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:25:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:22,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:25:22,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:22,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:22,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:22,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47554054] [2021-11-13 18:25:22,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47554054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:22,712 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:22,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:25:22,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626584857] [2021-11-13 18:25:22,718 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:22,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:25:22,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:22,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:25:22,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:22,765 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-13 18:25:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:22,825 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2021-11-13 18:25:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:25:22,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 18:25:22,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:22,836 INFO L225 Difference]: With dead ends: 51 [2021-11-13 18:25:22,837 INFO L226 Difference]: Without dead ends: 22 [2021-11-13 18:25:22,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:22,844 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.66ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 35.41ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:22,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 33 Invalid, 19 Unknown, 0 Unchecked, 2.66ms Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 8 Unchecked, 35.41ms Time] [2021-11-13 18:25:22,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-13 18:25:22,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-13 18:25:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 21 states have internal predecessors, (21), 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) [2021-11-13 18:25:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-11-13 18:25:22,877 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 4 [2021-11-13 18:25:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:22,878 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-11-13 18:25:22,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-13 18:25:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-11-13 18:25:22,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 18:25:22,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:22,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 18:25:22,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:25:23,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:23,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:23,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash 28697799, now seen corresponding path program 1 times [2021-11-13 18:25:23,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:23,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701985272] [2021-11-13 18:25:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:23,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:23,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:23,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:23,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:25:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:23,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:25:23,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:23,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:23,403 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:23,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701985272] [2021-11-13 18:25:23,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701985272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:23,404 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:23,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:25:23,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126295361] [2021-11-13 18:25:23,404 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:23,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:25:23,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:25:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:23,418 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-13 18:25:23,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:23,447 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-13 18:25:23,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:25:23,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 18:25:23,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:23,449 INFO L225 Difference]: With dead ends: 22 [2021-11-13 18:25:23,454 INFO L226 Difference]: Without dead ends: 20 [2021-11-13 18:25:23,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:23,456 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 20.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:23,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 20 Unknown, 0 Unchecked, 3.26ms Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 11 Unchecked, 20.00ms Time] [2021-11-13 18:25:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-13 18:25:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-13 18:25:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 19 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-11-13 18:25:23,464 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 5 [2021-11-13 18:25:23,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:23,465 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-11-13 18:25:23,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-13 18:25:23,466 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-11-13 18:25:23,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 18:25:23,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:23,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:25:23,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-13 18:25:23,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:23,679 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:23,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash 889635852, now seen corresponding path program 1 times [2021-11-13 18:25:23,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:23,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32292058] [2021-11-13 18:25:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:23,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:23,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:23,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:23,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:25:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:23,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:25:23,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:23,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:23,876 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:23,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32292058] [2021-11-13 18:25:23,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32292058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:23,878 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:23,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:25:23,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032934554] [2021-11-13 18:25:23,878 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:23,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:25:23,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:23,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:25:23,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:23,880 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-13 18:25:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:23,884 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-11-13 18:25:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:25:23,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 18:25:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:23,886 INFO L225 Difference]: With dead ends: 20 [2021-11-13 18:25:23,886 INFO L226 Difference]: Without dead ends: 18 [2021-11-13 18:25:23,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:23,891 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.13ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:23,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 10 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 10 Unchecked, 0.13ms Time] [2021-11-13 18:25:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-13 18:25:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-13 18:25:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-11-13 18:25:23,898 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 6 [2021-11-13 18:25:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:23,899 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-11-13 18:25:23,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-13 18:25:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-11-13 18:25:23,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 18:25:23,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:23,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:25:23,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:25:24,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:24,113 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1808911727, now seen corresponding path program 1 times [2021-11-13 18:25:24,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:24,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130788070] [2021-11-13 18:25:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:24,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:24,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:24,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:24,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 18:25:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:24,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:25:24,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:24,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:24,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:24,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130788070] [2021-11-13 18:25:24,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130788070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:24,260 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:24,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:25:24,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627266680] [2021-11-13 18:25:24,260 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:24,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:25:24,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:25:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:24,261 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-11-13 18:25:24,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:24,271 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-11-13 18:25:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:25:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 18:25:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:24,273 INFO L225 Difference]: With dead ends: 18 [2021-11-13 18:25:24,273 INFO L226 Difference]: Without dead ends: 16 [2021-11-13 18:25:24,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:24,275 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.47ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 7.42ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:24,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.47ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 9 Unchecked, 7.42ms Time] [2021-11-13 18:25:24,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-13 18:25:24,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-13 18:25:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-13 18:25:24,278 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-11-13 18:25:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:24,278 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-13 18:25:24,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-11-13 18:25:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-13 18:25:24,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:25:24,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:24,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:25:24,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:25:24,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:24,492 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:24,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash 241692788, now seen corresponding path program 1 times [2021-11-13 18:25:24,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:24,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767309189] [2021-11-13 18:25:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:24,493 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:24,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:24,494 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:24,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 18:25:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:24,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:25:24,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:24,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:24,637 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:24,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767309189] [2021-11-13 18:25:24,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767309189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:24,638 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:24,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:25:24,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710929149] [2021-11-13 18:25:24,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:24,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:25:24,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:24,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:25:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:24,640 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-11-13 18:25:24,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:24,650 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-13 18:25:24,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:25:24,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 18:25:24,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:24,651 INFO L225 Difference]: With dead ends: 16 [2021-11-13 18:25:24,652 INFO L226 Difference]: Without dead ends: 14 [2021-11-13 18:25:24,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:24,653 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.35ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 8.16ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:24,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 11 Unknown, 0 Unchecked, 0.35ms Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 8.16ms Time] [2021-11-13 18:25:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-13 18:25:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-13 18:25:24,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-13 18:25:24,656 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 8 [2021-11-13 18:25:24,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:24,656 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-13 18:25:24,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-11-13 18:25:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-13 18:25:24,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 18:25:24,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:24,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:25:24,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:25:24,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:24,870 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1097454057, now seen corresponding path program 1 times [2021-11-13 18:25:24,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:24,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295426559] [2021-11-13 18:25:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:24,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:24,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:24,872 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:24,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 18:25:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:24,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:25:24,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:24,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:25,016 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:25,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295426559] [2021-11-13 18:25:25,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295426559] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:25,016 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:25,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:25:25,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666628415] [2021-11-13 18:25:25,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:25,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:25:25,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:25,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:25:25,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:25,023 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:25,029 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-13 18:25:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:25:25,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 18:25:25,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:25,030 INFO L225 Difference]: With dead ends: 14 [2021-11-13 18:25:25,031 INFO L226 Difference]: Without dead ends: 12 [2021-11-13 18:25:25,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:25:25,033 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 1.61ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:25,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 7 Unchecked, 1.61ms Time] [2021-11-13 18:25:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-13 18:25:25,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-13 18:25:25,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-13 18:25:25,038 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2021-11-13 18:25:25,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:25,038 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-13 18:25:25,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-13 18:25:25,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 18:25:25,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:25:25,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:25:25,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:25:25,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:25,252 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-13 18:25:25,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:25:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1908731737, now seen corresponding path program 1 times [2021-11-13 18:25:25,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:25:25,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835159310] [2021-11-13 18:25:25,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:25:25,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:25:25,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:25:25,255 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:25:25,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 18:25:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:25:25,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:25:25,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:25:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:25,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:25:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:25:25,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:25:25,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835159310] [2021-11-13 18:25:25,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835159310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:25:25,787 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:25:25,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 18:25:25,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133312674] [2021-11-13 18:25:25,790 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:25:25,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:25:25,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:25:25,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:25:25,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:25:25,792 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:25:25,796 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-13 18:25:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:25:25,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 18:25:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:25:25,800 INFO L225 Difference]: With dead ends: 12 [2021-11-13 18:25:25,800 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:25:25,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:25:25,801 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 1.56ms IncrementalHoareTripleChecker+Time [2021-11-13 18:25:25,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 7 Unchecked, 1.56ms Time] [2021-11-13 18:25:25,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:25:25,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:25:25,803 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) [2021-11-13 18:25:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:25:25,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-13 18:25:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:25:25,804 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:25:25,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:25:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:25:25,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:25:25,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-11-13 18:25:25,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-11-13 18:25:25,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-11-13 18:25:25,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-11-13 18:25:25,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-11-13 18:25:25,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-11-13 18:25:25,816 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-11-13 18:25:25,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:25:26,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:25:26,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point L383(line 383) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point L383-1(line 383) no Hoare annotation was computed. [2021-11-13 18:25:26,039 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:25:26,040 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:25:26,040 INFO L858 garLoopResultBuilder]: For program point L383-3(line 383) no Hoare annotation was computed. [2021-11-13 18:25:26,040 INFO L858 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2021-11-13 18:25:26,040 INFO L858 garLoopResultBuilder]: For program point L379-2(lines 374 385) no Hoare annotation was computed. [2021-11-13 18:25:26,040 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2021-11-13 18:25:26,040 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:25:26,041 INFO L854 garLoopResultBuilder]: At program point L384(lines 373 385) the Hoare annotation is: (not (fp.isNaN |ULTIMATE.start_main_~largestSubnormalFloat~0#1|)) [2021-11-13 18:25:26,041 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-11-13 18:25:26,041 INFO L858 garLoopResultBuilder]: For program point L380-2(lines 374 385) no Hoare annotation was computed. [2021-11-13 18:25:26,041 INFO L858 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2021-11-13 18:25:26,041 INFO L858 garLoopResultBuilder]: For program point L376-1(line 376) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point L376-3(lines 374 385) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 383) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point L381-2(line 381) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2021-11-13 18:25:26,042 INFO L858 garLoopResultBuilder]: For program point L377-2(lines 374 385) no Hoare annotation was computed. [2021-11-13 18:25:26,043 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2021-11-13 18:25:26,046 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:25:26,048 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:25:26,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:25:26 BoogieIcfgContainer [2021-11-13 18:25:26,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:25:26,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:25:26,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:25:26,062 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:25:26,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:22" (3/4) ... [2021-11-13 18:25:26,065 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:25:26,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-13 18:25:26,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:25:26,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:25:26,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:25:26,121 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:25:26,121 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:25:26,122 INFO L158 Benchmark]: Toolchain (without parser) took 5296.12ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 32.9MB in the beginning and 56.7MB in the end (delta: -23.8MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2021-11-13 18:25:26,122 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:25:26,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.07ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 32.7MB in the beginning and 49.1MB in the end (delta: -16.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-13 18:25:26,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.99ms. Allocated memory is still 69.2MB. Free memory was 49.1MB in the beginning and 46.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:25:26,123 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 45.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:25:26,124 INFO L158 Benchmark]: RCFGBuilder took 303.44ms. Allocated memory is still 69.2MB. Free memory was 45.2MB in the beginning and 35.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:25:26,124 INFO L158 Benchmark]: TraceAbstraction took 3895.01ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 34.7MB in the beginning and 60.1MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:25:26,125 INFO L158 Benchmark]: Witness Printer took 60.01ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 56.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:25:26,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 931.07ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 32.7MB in the beginning and 49.1MB in the end (delta: -16.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.99ms. Allocated memory is still 69.2MB. Free memory was 49.1MB in the beginning and 46.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 45.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.44ms. Allocated memory is still 69.2MB. Free memory was 45.2MB in the beginning and 35.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3895.01ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 34.7MB in the beginning and 60.1MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.01ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 56.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 376]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 377]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 379]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 380]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 381]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 383]: 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 1 procedures, 28 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 74.29ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 62.26ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 60 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 71 mSDtfsCounter, 21 mSolverCounterSat, 8.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 28 QuantifiedInterpolants, 293 SizeOfPredicates, 21 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 15 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 7 specifications checked. All of them hold - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: !~fp.isNaN~LONGDOUBLE(largestSubnormalFloat) RESULT: Ultimate proved your program to be correct! [2021-11-13 18:25:26,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63fef12d-ad20-44e3-85f2-cc712799407b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE