./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be --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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f ......................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be --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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:21:02,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:21:02,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:21:02,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:21:02,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:21:02,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:21:02,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:21:02,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:21:02,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:21:02,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:21:02,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:21:02,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:21:02,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:21:02,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:21:02,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:21:02,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:21:02,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:21:02,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:21:02,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:21:02,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:21:02,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:21:02,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:21:02,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:21:02,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:21:02,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:21:02,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:21:02,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:21:02,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:21:02,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:21:02,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:21:02,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:21:02,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:21:02,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:21:02,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:21:02,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:21:02,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:21:02,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:21:02,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:21:02,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:21:02,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:21:02,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:21:02,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:21:02,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:21:02,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:21:02,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:21:02,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:21:02,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:21:02,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:21:02,895 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:21:02,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:21:02,895 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:21:02,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:21:02,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:21:02,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:21:02,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:21:02,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:21:02,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:21:02,897 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:21:02,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:21:02,898 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:21:02,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:21:02,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:21:02,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:21:02,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:21:02,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:21:02,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:21:02,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:21:02,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:21:02,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:21:02,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:21:02,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:21:02,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:21:02,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:21:02,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:21:02,902 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2021-10-21 19:21:03,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:21:03,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:21:03,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:21:03,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:21:03,218 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:21:03,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-21 19:21:03,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/f6ecefe15/c718c590f5164f3bb9d4f0e1b9348824/FLAG416e3a654 [2021-10-21 19:21:03,876 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:21:03,877 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-21 19:21:03,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/f6ecefe15/c718c590f5164f3bb9d4f0e1b9348824/FLAG416e3a654 [2021-10-21 19:21:04,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/f6ecefe15/c718c590f5164f3bb9d4f0e1b9348824 [2021-10-21 19:21:04,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:21:04,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:21:04,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:04,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:21:04,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:21:04,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:04" (1/1) ... [2021-10-21 19:21:04,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a75c666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:04, skipping insertion in model container [2021-10-21 19:21:04,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:04" (1/1) ... [2021-10-21 19:21:04,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:21:04,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:21:05,009 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:1694) 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:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) 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:2349) 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:712) 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:2349) 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:2349) 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:1576) 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:1052) 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:1430) 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:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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) [2021-10-21 19:21:05,014 INFO L168 Benchmark]: Toolchain (without parser) took 830.20 ms. Allocated memory is still 113.2 MB. Free memory was 76.4 MB in the beginning and 87.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:05,015 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 113.2 MB. Free memory is still 94.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:21:05,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.73 ms. Allocated memory is still 113.2 MB. Free memory was 76.3 MB in the beginning and 87.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:21:05,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 113.2 MB. Free memory is still 94.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 827.73 ms. Allocated memory is still 113.2 MB. Free memory was 76.3 MB in the beginning and 87.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:21:07,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:21:07,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:21:07,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:21:07,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:21:07,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:21:07,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:21:07,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:21:07,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:21:07,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:21:07,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:21:07,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:21:07,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:21:07,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:21:07,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:21:07,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:21:07,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:21:07,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:21:07,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:21:07,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:21:07,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:21:07,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:21:07,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:21:07,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:21:07,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:21:07,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:21:07,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:21:07,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:21:07,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:21:07,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:21:07,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:21:07,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:21:07,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:21:07,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:21:07,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:21:07,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:21:07,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:21:07,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:21:07,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:21:07,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:21:07,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:21:07,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:21:07,444 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:21:07,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:21:07,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:21:07,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:21:07,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:21:07,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:21:07,446 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:21:07,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:21:07,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:21:07,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:21:07,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:21:07,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:21:07,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:21:07,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:21:07,448 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:21:07,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:21:07,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:21:07,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:21:07,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:21:07,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:21:07,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:21:07,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:21:07,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:21:07,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:21:07,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:21:07,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:21:07,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:21:07,451 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:21:07,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:21:07,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:21:07,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:21:07,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:21:07,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:21:07,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:21:07,452 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2021-10-21 19:21:07,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:21:07,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:21:07,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:21:07,792 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:21:07,795 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:21:07,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-21 19:21:07,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/487aada83/50d3d436ac474019b261793be4cbba25/FLAGbb3a4638f [2021-10-21 19:21:08,413 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:21:08,414 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-21 19:21:08,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/487aada83/50d3d436ac474019b261793be4cbba25/FLAGbb3a4638f [2021-10-21 19:21:08,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/data/487aada83/50d3d436ac474019b261793be4cbba25 [2021-10-21 19:21:08,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:21:08,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:21:08,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:08,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:21:08,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:21:08,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:08" (1/1) ... [2021-10-21 19:21:08,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367da30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:08, skipping insertion in model container [2021-10-21 19:21:08,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:08" (1/1) ... [2021-10-21 19:21:08,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:21:08,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:21:09,382 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-10-21 19:21:09,391 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-10-21 19:21:09,393 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-10-21 19:21:09,396 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-10-21 19:21:09,398 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-10-21 19:21:09,400 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-10-21 19:21:09,400 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-10-21 19:21:09,401 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-10-21 19:21:09,402 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-10-21 19:21:09,403 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-10-21 19:21:09,405 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-10-21 19:21:09,407 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-10-21 19:21:09,412 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-10-21 19:21:09,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:21:09,437 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:21:09,473 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-10-21 19:21:09,476 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-10-21 19:21:09,477 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-10-21 19:21:09,480 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-10-21 19:21:09,486 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-10-21 19:21:09,487 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-10-21 19:21:09,488 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-10-21 19:21:09,488 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-10-21 19:21:09,489 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-10-21 19:21:09,490 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-10-21 19:21:09,491 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-10-21 19:21:09,491 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-10-21 19:21:09,494 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_70b80b69-59db-4ebc-b965-1a7b3d284b5b/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-10-21 19:21:09,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:21:09,633 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:21:09,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09 WrapperNode [2021-10-21 19:21:09,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:09,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:21:09,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:21:09,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:21:09,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:21:09,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:21:09,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:21:09,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:21:09,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:21:09,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:21:09,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:21:09,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:21:09,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (1/1) ... [2021-10-21 19:21:09,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:21:09,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:21:09,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:21:09,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:21:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:21:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:21:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:21:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:21:19,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:21:19,579 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 19:21:19,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:19 BoogieIcfgContainer [2021-10-21 19:21:19,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:21:19,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:21:19,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:21:19,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:21:19,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:21:08" (1/3) ... [2021-10-21 19:21:19,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f7868a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:21:19, skipping insertion in model container [2021-10-21 19:21:19,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:09" (2/3) ... [2021-10-21 19:21:19,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f7868a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:21:19, skipping insertion in model container [2021-10-21 19:21:19,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:19" (3/3) ... [2021-10-21 19:21:19,589 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2021-10-21 19:21:19,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:21:19,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-10-21 19:21:19,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:21:19,642 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 [2021-10-21 19:21:19,643 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-10-21 19:21:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 50 states have internal predecessors, (66), 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) [2021-10-21 19:21:19,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:21:19,659 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:21:19,659 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:21:19,660 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:21:19,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:19,665 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-21 19:21:19,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:21:19,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544618907] [2021-10-21 19:21:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:19,678 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:21:19,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:21:19,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:21:19,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:21:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:19,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:21:19,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:21:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:19,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:21:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:19,950 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:21:19,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544618907] [2021-10-21 19:21:19,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544618907] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:19,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:19,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:21:19,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304495142] [2021-10-21 19:21:19,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:21:19,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:21:19,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:21:19,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:21:19,988 INFO L87 Difference]: Start difference. First operand has 51 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 50 states have internal predecessors, (66), 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) [2021-10-21 19:21:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:24,523 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2021-10-21 19:21:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:21:24,545 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 [2021-10-21 19:21:24,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:21:24,551 INFO L225 Difference]: With dead ends: 95 [2021-10-21 19:21:24,552 INFO L226 Difference]: Without dead ends: 43 [2021-10-21 19:21:24,554 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:21:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-21 19:21:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-21 19:21:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.3125) internal successors, (42), 42 states have internal predecessors, (42), 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) [2021-10-21 19:21:24,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2021-10-21 19:21:24,579 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 4 [2021-10-21 19:21:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:21:24,579 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2021-10-21 19:21:24,580 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) [2021-10-21 19:21:24,580 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2021-10-21 19:21:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:21:24,580 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:21:24,581 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:24,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:21:24,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:21:24,793 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:21:24,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:24,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1808724044, now seen corresponding path program 1 times [2021-10-21 19:21:24,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:21:24,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634831156] [2021-10-21 19:21:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:24,796 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:21:24,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:21:24,797 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:21:24,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:21:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:24,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:21:24,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:21:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:27,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:21:27,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:27,947 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:21:27,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634831156] [2021-10-21 19:21:27,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634831156] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:27,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:27,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:21:27,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087143585] [2021-10-21 19:21:27,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:21:27,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:21:27,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:21:27,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:21:27,950 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2021-10-21 19:21:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:36,848 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2021-10-21 19:21:36,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:21:36,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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 [2021-10-21 19:21:36,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:21:36,861 INFO L225 Difference]: With dead ends: 43 [2021-10-21 19:21:36,862 INFO L226 Difference]: Without dead ends: 41 [2021-10-21 19:21:36,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 340.0ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:21:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-21 19:21:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-21 19:21:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 40 states have internal predecessors, (40), 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) [2021-10-21 19:21:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2021-10-21 19:21:36,867 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 7 [2021-10-21 19:21:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:21:36,868 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2021-10-21 19:21:36,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2021-10-21 19:21:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2021-10-21 19:21:36,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 19:21:36,869 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:21:36,869 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:36,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:21:37,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:21:37,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:21:37,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:37,074 INFO L82 PathProgramCache]: Analyzing trace with hash 235874606, now seen corresponding path program 1 times [2021-10-21 19:21:37,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:21:37,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836166535] [2021-10-21 19:21:37,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:37,075 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:21:37,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:21:37,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:21:37,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:21:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:37,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:21:37,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:21:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:37,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:21:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:37,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:21:37,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836166535] [2021-10-21 19:21:37,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836166535] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:37,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:37,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:21:37,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760728467] [2021-10-21 19:21:37,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:21:37,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:21:37,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:21:37,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:21:37,330 INFO L87 Difference]: Start difference. First operand 41 states and 40 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) [2021-10-21 19:21:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:43,021 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2021-10-21 19:21:43,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:21:43,030 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 [2021-10-21 19:21:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:21:43,031 INFO L225 Difference]: With dead ends: 41 [2021-10-21 19:21:43,031 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 19:21:43,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:21:43,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 19:21:43,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-21 19:21:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 36 states have internal predecessors, (36), 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) [2021-10-21 19:21:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2021-10-21 19:21:43,036 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 8 [2021-10-21 19:21:43,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:21:43,037 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2021-10-21 19:21:43,037 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) [2021-10-21 19:21:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2021-10-21 19:21:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:21:43,037 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:21:43,038 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:43,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:21:43,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:21:43,239 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:21:43,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:43,240 INFO L82 PathProgramCache]: Analyzing trace with hash 377772985, now seen corresponding path program 1 times [2021-10-21 19:21:43,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:21:43,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604716856] [2021-10-21 19:21:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:43,241 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:21:43,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:21:43,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:21:43,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:21:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:43,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:21:43,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:21:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:44,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:21:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:59,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:21:59,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604716856] [2021-10-21 19:21:59,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604716856] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:59,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:59,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:21:59,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021802496] [2021-10-21 19:21:59,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:21:59,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:21:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:21:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:21:59,315 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-10-21 19:22:15,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:15,781 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2021-10-21 19:22:15,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:22:15,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 [2021-10-21 19:22:15,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:15,798 INFO L225 Difference]: With dead ends: 37 [2021-10-21 19:22:15,799 INFO L226 Difference]: Without dead ends: 35 [2021-10-21 19:22:15,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6891.8ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:22:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-21 19:22:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-21 19:22:15,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 34 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) [2021-10-21 19:22:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2021-10-21 19:22:15,801 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 11 [2021-10-21 19:22:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:15,802 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2021-10-21 19:22:15,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-10-21 19:22:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2021-10-21 19:22:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:22:15,802 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:15,802 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:15,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-21 19:22:16,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:16,003 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:22:16,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:16,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1173935240, now seen corresponding path program 1 times [2021-10-21 19:22:16,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:16,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484049268] [2021-10-21 19:22:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:16,005 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:16,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:16,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:16,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:22:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:16,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:22:16,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:16,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:16,410 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:16,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484049268] [2021-10-21 19:22:16,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484049268] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:16,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:16,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:22:16,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449485620] [2021-10-21 19:22:16,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:22:16,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:22:16,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:16,412 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-21 19:22:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:20,995 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2021-10-21 19:22:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:22:21,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 12 [2021-10-21 19:22:21,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:21,002 INFO L225 Difference]: With dead ends: 35 [2021-10-21 19:22:21,002 INFO L226 Difference]: Without dead ends: 31 [2021-10-21 19:22:21,002 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:21,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-21 19:22:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-21 19:22:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 30 states have internal predecessors, (30), 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) [2021-10-21 19:22:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-21 19:22:21,005 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 12 [2021-10-21 19:22:21,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:21,006 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-21 19:22:21,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-21 19:22:21,007 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-21 19:22:21,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:22:21,007 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:21,007 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:21,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:21,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:21,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:22:21,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:21,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1424765088, now seen corresponding path program 1 times [2021-10-21 19:22:21,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:21,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839964245] [2021-10-21 19:22:21,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:21,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:21,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:21,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:21,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:22:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:21,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:22:21,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:21,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:23,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:23,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839964245] [2021-10-21 19:22:23,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839964245] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:23,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:23,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:22:23,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960307959] [2021-10-21 19:22:23,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:22:23,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:23,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:22:23,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:23,713 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-21 19:22:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:27,693 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-10-21 19:22:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:22:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 14 [2021-10-21 19:22:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:27,706 INFO L225 Difference]: With dead ends: 31 [2021-10-21 19:22:27,706 INFO L226 Difference]: Without dead ends: 29 [2021-10-21 19:22:27,707 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 476.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:27,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-21 19:22:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-21 19:22:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 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) [2021-10-21 19:22:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-10-21 19:22:27,710 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 14 [2021-10-21 19:22:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:27,710 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-10-21 19:22:27,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-21 19:22:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-10-21 19:22:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:22:27,711 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:27,711 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:27,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:27,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:27,912 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:22:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:27,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1218048905, now seen corresponding path program 1 times [2021-10-21 19:22:27,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:27,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476812798] [2021-10-21 19:22:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:27,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:27,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:27,922 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:27,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:22:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:28,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:22:28,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:28,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:31,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:22:31,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476812798] [2021-10-21 19:22:31,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476812798] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:22:31,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:22:31,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:22:31,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145301385] [2021-10-21 19:22:31,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:22:31,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:22:31,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:22:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:31,012 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-21 19:22:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:22:35,955 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2021-10-21 19:22:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:22:35,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-21 19:22:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:22:35,967 INFO L225 Difference]: With dead ends: 29 [2021-10-21 19:22:35,967 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 19:22:35,968 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 561.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:22:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 19:22:35,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 19:22:35,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 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) [2021-10-21 19:22:35,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-10-21 19:22:35,973 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2021-10-21 19:22:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:22:35,973 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-10-21 19:22:35,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-21 19:22:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-10-21 19:22:35,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:22:35,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:22:35,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:22:35,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:22:36,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:22:36,175 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:22:36,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:22:36,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1279638800, now seen corresponding path program 1 times [2021-10-21 19:22:36,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:22:36,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215857299] [2021-10-21 19:22:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:22:36,176 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:22:36,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:22:36,177 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:22:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:22:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:22:36,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:22:36,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:22:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:22:36,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:22:42,183 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~smallestNormalFloat~0) c_ULTIMATE.start_main_~v~0) (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~v~0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~largestSubnormalFloat~0))) is different from false [2021-10-21 19:22:44,203 WARN L860 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~smallestNormalFloat~0) c_ULTIMATE.start_main_~v~0) (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~v~0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~largestSubnormalFloat~0))) is different from true [2021-10-21 19:23:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:23:36,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:23:36,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215857299] [2021-10-21 19:23:36,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215857299] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:23:36,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:23:36,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-21 19:23:36,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609777446] [2021-10-21 19:23:36,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:23:36,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:23:36,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:23:36,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=6, Unknown=2, NotChecked=4, Total=20 [2021-10-21 19:23:36,725 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-21 19:23:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:23:42,554 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-10-21 19:23:42,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:23:42,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-21 19:23:42,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:23:42,568 INFO L225 Difference]: With dead ends: 27 [2021-10-21 19:23:42,568 INFO L226 Difference]: Without dead ends: 23 [2021-10-21 19:23:42,568 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6916.8ms TimeCoverageRelationStatistics Valid=8, Invalid=6, Unknown=2, NotChecked=4, Total=20 [2021-10-21 19:23:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-21 19:23:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-21 19:23:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2021-10-21 19:23:42,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-10-21 19:23:42,571 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 18 [2021-10-21 19:23:42,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:23:42,571 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-10-21 19:23:42,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-21 19:23:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-10-21 19:23:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:23:42,572 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:23:42,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:23:42,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-21 19:23:42,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:23:42,774 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-21 19:23:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:23:42,774 INFO L82 PathProgramCache]: Analyzing trace with hash -39659491, now seen corresponding path program 1 times [2021-10-21 19:23:42,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:23:42,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097657253] [2021-10-21 19:23:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:23:42,774 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:23:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:23:42,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:23:42,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:23:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:23:43,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:23:43,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:23:54,709 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)) (fp.isSubnormal ULTIMATE.start_main_~f~0))) is different from false [2021-10-21 19:23:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:23:56,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:38,265 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~f~0_33 (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_33)) v_ULTIMATE.start_main_~f~0_33) (not (fp.isSubnormal v_ULTIMATE.start_main_~f~0_33)))) is different from false [2021-10-21 19:24:40,278 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~f~0_33 (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_33)) v_ULTIMATE.start_main_~f~0_33) (not (fp.isSubnormal v_ULTIMATE.start_main_~f~0_33)))) is different from true [2021-10-21 19:26:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:26:11,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:26:11,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097657253] [2021-10-21 19:26:11,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097657253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:26:11,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:26:11,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-21 19:26:11,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801114356] [2021-10-21 19:26:11,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:26:11,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:26:11,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:26:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=26, Unknown=6, NotChecked=22, Total=72 [2021-10-21 19:26:11,074 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-21 19:26:14,597 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_33 (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_33)) v_ULTIMATE.start_main_~f~0_33) (not (fp.isSubnormal v_ULTIMATE.start_main_~f~0_33)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-21 19:26:29,843 WARN L207 SmtUtils]: Spent 11.81 s on a formula simplification that was a NOOP. DAG size: 19 [2021-10-21 19:26:49,710 WARN L207 SmtUtils]: Spent 17.37 s on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2021-10-21 19:26:49,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:26:49,711 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-21 19:26:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:26:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 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 22 [2021-10-21 19:26:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:26:49,712 INFO L225 Difference]: With dead ends: 23 [2021-10-21 19:26:49,712 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:26:49,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 63084.6ms TimeCoverageRelationStatistics Valid=33, Invalid=44, Unknown=7, NotChecked=48, Total=132 [2021-10-21 19:26:49,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:26:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:26:49,713 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) [2021-10-21 19:26:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:26:49,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-21 19:26:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:26:49,713 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:26:49,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-21 19:26:49,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:26:49,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:26:49,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,718 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,718 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,718 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,719 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,719 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,719 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,719 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,721 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:26:49,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-21 19:26:49,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:26:49,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:26:49,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:26:49,987 INFO L857 garLoopResultBuilder]: For program point L2-1(line 391) no Hoare annotation was computed. [2021-10-21 19:26:49,988 INFO L857 garLoopResultBuilder]: For program point L2-2(line 402) no Hoare annotation was computed. [2021-10-21 19:26:49,988 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 397) no Hoare annotation was computed. [2021-10-21 19:26:49,988 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 387) no Hoare annotation was computed. [2021-10-21 19:26:49,988 INFO L857 garLoopResultBuilder]: For program point L399(line 399) no Hoare annotation was computed. [2021-10-21 19:26:49,989 INFO L857 garLoopResultBuilder]: For program point L399-2(line 399) no Hoare annotation was computed. [2021-10-21 19:26:49,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 402) no Hoare annotation was computed. [2021-10-21 19:26:49,989 INFO L857 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2021-10-21 19:26:49,989 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,989 INFO L857 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-21 19:26:49,990 INFO L857 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-10-21 19:26:49,990 INFO L857 garLoopResultBuilder]: For program point L3-4(line 3) no Hoare annotation was computed. [2021-10-21 19:26:49,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2021-10-21 19:26:49,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:26:49,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:26:49,992 INFO L857 garLoopResultBuilder]: For program point L392(line 392) no Hoare annotation was computed. [2021-10-21 19:26:49,992 INFO L857 garLoopResultBuilder]: For program point L392-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,993 INFO L857 garLoopResultBuilder]: For program point L384(line 384) no Hoare annotation was computed. [2021-10-21 19:26:49,993 INFO L857 garLoopResultBuilder]: For program point L384-1(line 384) no Hoare annotation was computed. [2021-10-21 19:26:49,993 INFO L857 garLoopResultBuilder]: For program point L384-3(line 384) no Hoare annotation was computed. [2021-10-21 19:26:49,993 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 399) no Hoare annotation was computed. [2021-10-21 19:26:49,994 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-10-21 19:26:49,994 INFO L857 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2021-10-21 19:26:49,994 INFO L857 garLoopResultBuilder]: For program point L393-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,994 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 394) no Hoare annotation was computed. [2021-10-21 19:26:49,994 INFO L857 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-21 19:26:49,995 INFO L857 garLoopResultBuilder]: For program point L402-2(line 402) no Hoare annotation was computed. [2021-10-21 19:26:49,995 INFO L857 garLoopResultBuilder]: For program point L394(line 394) no Hoare annotation was computed. [2021-10-21 19:26:49,995 INFO L857 garLoopResultBuilder]: For program point L394-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,995 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 393) no Hoare annotation was computed. [2021-10-21 19:26:49,996 INFO L853 garLoopResultBuilder]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2021-10-21 19:26:49,997 INFO L857 garLoopResultBuilder]: For program point L395(line 395) no Hoare annotation was computed. [2021-10-21 19:26:49,997 INFO L857 garLoopResultBuilder]: For program point L395-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,997 INFO L857 garLoopResultBuilder]: For program point L387(line 387) no Hoare annotation was computed. [2021-10-21 19:26:49,998 INFO L857 garLoopResultBuilder]: For program point L387-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,998 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:26:49,998 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 396) no Hoare annotation was computed. [2021-10-21 19:26:49,998 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2021-10-21 19:26:49,998 INFO L857 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2021-10-21 19:26:49,999 INFO L857 garLoopResultBuilder]: For program point L396-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:49,999 INFO L857 garLoopResultBuilder]: For program point L388(line 388) no Hoare annotation was computed. [2021-10-21 19:26:49,999 INFO L857 garLoopResultBuilder]: For program point L388-2(line 388) no Hoare annotation was computed. [2021-10-21 19:26:50,000 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:26:50,000 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 395) no Hoare annotation was computed. [2021-10-21 19:26:50,001 INFO L857 garLoopResultBuilder]: For program point L397(line 397) no Hoare annotation was computed. [2021-10-21 19:26:50,001 INFO L857 garLoopResultBuilder]: For program point L397-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:50,001 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 398) no Hoare annotation was computed. [2021-10-21 19:26:50,001 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2021-10-21 19:26:50,001 INFO L857 garLoopResultBuilder]: For program point L398(line 398) no Hoare annotation was computed. [2021-10-21 19:26:50,002 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 379 404) no Hoare annotation was computed. [2021-10-21 19:26:50,002 INFO L857 garLoopResultBuilder]: For program point L2(line 387) no Hoare annotation was computed. [2021-10-21 19:26:50,007 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:26:50,017 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:26:50,025 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:26:50,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:26:50 BoogieIcfgContainer [2021-10-21 19:26:50,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:26:50,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:26:50,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:26:50,033 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:26:50,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:19" (3/4) ... [2021-10-21 19:26:50,040 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:26:50,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-21 19:26:50,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:26:50,060 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:26:50,060 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:26:50,095 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2021-10-21 19:26:50,130 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:26:50,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:26:50,132 INFO L168 Benchmark]: Toolchain (without parser) took 341427.98 ms. Allocated memory was 62.9 MB in the beginning and 119.5 MB in the end (delta: 56.6 MB). Free memory was 40.7 MB in the beginning and 42.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:26:50,132 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:26:50,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 929.41 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 40.6 MB in the beginning and 48.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:26:50,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.47 ms. Allocated memory is still 83.9 MB. Free memory was 48.1 MB in the beginning and 45.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:26:50,135 INFO L168 Benchmark]: Boogie Preprocessor took 29.34 ms. Allocated memory is still 83.9 MB. Free memory was 45.3 MB in the beginning and 44.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:26:50,135 INFO L168 Benchmark]: RCFGBuilder took 9856.86 ms. Allocated memory is still 83.9 MB. Free memory was 43.9 MB in the beginning and 57.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:26:50,136 INFO L168 Benchmark]: TraceAbstraction took 330448.93 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 56.3 MB in the beginning and 45.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:26:50,136 INFO L168 Benchmark]: Witness Printer took 97.59 ms. Allocated memory is still 119.5 MB. Free memory was 45.8 MB in the beginning and 42.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:26:50,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 929.41 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 40.6 MB in the beginning and 48.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.47 ms. Allocated memory is still 83.9 MB. Free memory was 48.1 MB in the beginning and 45.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.34 ms. Allocated memory is still 83.9 MB. Free memory was 45.3 MB in the beginning and 44.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 9856.86 ms. Allocated memory is still 83.9 MB. Free memory was 43.9 MB in the beginning and 57.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 330448.93 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 56.3 MB in the beginning and 45.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. * Witness Printer took 97.59 ms. Allocated memory is still 119.5 MB. Free memory was 45.8 MB in the beginning and 42.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 387]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 388]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 393]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 394]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 395]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 396]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 397]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 398]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 399]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 402]: 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, 51 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 330371.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 12.4ms, AutomataDifference: 93722.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 56.6ms, InitialAbstractionConstructionTime: 7.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 318 SDslu, 87 SDs, 0 SdLazy, 209 SolverSat, 6 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 53191.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 78339.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 39.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 43.6ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 47.3ms SsaConstructionTime, 799.5ms SatisfiabilityAnalysisTime, 233133.5ms InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 204 ConstructedInterpolants, 46 QuantifiedInterpolants, 1614 SizeOfPredicates, 38 NumberOfNonLiveVariables, 312 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant [2021-10-21 19:26:50,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:26:50,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:26:50,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b80b69-59db-4ebc-b965-1a7b3d284b5b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...