./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G --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 dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:42:46,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:42:46,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:42:46,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:42:46,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:42:46,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:42:46,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:42:46,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:42:46,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:42:46,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:42:46,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:42:46,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:42:46,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:42:46,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:42:46,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:42:46,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:42:46,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:42:46,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:42:46,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:42:46,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:42:46,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:42:46,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:42:46,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:42:46,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:42:46,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:42:46,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:42:46,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:42:46,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:42:46,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:42:46,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:42:46,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:42:46,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:42:46,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:42:46,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:42:46,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:42:46,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:42:46,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:42:46,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:42:46,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:42:46,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:42:46,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:42:46,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:42:47,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:42:47,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:42:47,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:42:47,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:42:47,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:42:47,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:42:47,040 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:42:47,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:42:47,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:42:47,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:42:47,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:42:47,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:42:47,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:42:47,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:42:47,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:42:47,042 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:42:47,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:42:47,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:42:47,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:42:47,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:42:47,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:42:47,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:42:47,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:42:47,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:42:47,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:42:47,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:42:47,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:42:47,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:42:47,045 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:42:47,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:42:47,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:42:47,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:42:47,046 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_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2021-11-23 13:42:47,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:42:47,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:42:47,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:42:47,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:42:47,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:42:47,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-11-23 13:42:47,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/7d5bdd414/ec4a9d8492a84ce1b7449b1b5fe6b149/FLAGfc6dee3ba [2021-11-23 13:42:47,953 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:42:47,953 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-11-23 13:42:47,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/7d5bdd414/ec4a9d8492a84ce1b7449b1b5fe6b149/FLAGfc6dee3ba [2021-11-23 13:42:48,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/7d5bdd414/ec4a9d8492a84ce1b7449b1b5fe6b149 [2021-11-23 13:42:48,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:42:48,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:42:48,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:42:48,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:42:48,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:42:48,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:48" (1/1) ... [2021-11-23 13:42:48,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613f3076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:48, skipping insertion in model container [2021-11-23 13:42:48,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:48" (1/1) ... [2021-11-23 13:42:48,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:42:48,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:42:48,920 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1482) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 13:42:48,931 INFO L158 Benchmark]: Toolchain (without parser) took 671.27ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 66.9MB in the beginning and 95.7MB in the end (delta: -28.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:42:48,932 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:42:48,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.73ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 66.6MB in the beginning and 95.7MB in the end (delta: -29.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:42:48,936 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 666.73ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 66.6MB in the beginning and 95.7MB in the end (delta: -29.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G --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 dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:42:51,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:42:51,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:42:51,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:42:51,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:42:51,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:42:51,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:42:51,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:42:51,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:42:51,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:42:51,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:42:51,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:42:51,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:42:51,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:42:51,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:42:51,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:42:51,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:42:51,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:42:51,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:42:51,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:42:51,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:42:51,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:42:51,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:42:51,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:42:51,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:42:51,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:42:51,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:42:51,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:42:51,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:42:51,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:42:51,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:42:51,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:42:51,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:42:51,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:42:51,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:42:51,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:42:51,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:42:51,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:42:51,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:42:51,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:42:51,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:42:51,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 13:42:51,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:42:51,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:42:51,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:42:51,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:42:51,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:42:51,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:42:51,366 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:42:51,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:42:51,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:42:51,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:42:51,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:42:51,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:42:51,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:42:51,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:42:51,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:42:51,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:42:51,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:42:51,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:42:51,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:42:51,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:42:51,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:42:51,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:42:51,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:42:51,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:42:51,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:42:51,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:42:51,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:42:51,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:42:51,372 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:42:51,372 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:42:51,372 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:42:51,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:42:51,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:42:51,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:42:51,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:42:51,374 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_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2021-11-23 13:42:51,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:42:51,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:42:51,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:42:51,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:42:51,783 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:42:51,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-11-23 13:42:51,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/f427a174b/c13fabe07c274b32bcdfa4d822104a6e/FLAGafcd4b952 [2021-11-23 13:42:52,530 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:42:52,531 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-11-23 13:42:52,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/f427a174b/c13fabe07c274b32bcdfa4d822104a6e/FLAGafcd4b952 [2021-11-23 13:42:52,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/data/f427a174b/c13fabe07c274b32bcdfa4d822104a6e [2021-11-23 13:42:52,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:42:52,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:42:52,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:42:52,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:42:52,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:42:52,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:52" (1/1) ... [2021-11-23 13:42:52,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280a2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:52, skipping insertion in model container [2021-11-23 13:42:52,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:52" (1/1) ... [2021-11-23 13:42:52,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:42:52,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:42:53,401 WARN L230 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_51737297-f296-43e3-b293-98af8fd8e514/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2021-11-23 13:42:53,404 WARN L230 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_51737297-f296-43e3-b293-98af8fd8e514/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2021-11-23 13:42:53,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:42:53,424 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:42:53,453 WARN L230 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_51737297-f296-43e3-b293-98af8fd8e514/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2021-11-23 13:42:53,454 WARN L230 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_51737297-f296-43e3-b293-98af8fd8e514/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2021-11-23 13:42:53,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:42:53,605 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:42:53,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53 WrapperNode [2021-11-23 13:42:53,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:42:53,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:42:53,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:42:53,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:42:53,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,676 INFO L137 Inliner]: procedures = 461, calls = 12, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 110 [2021-11-23 13:42:53,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:42:53,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:42:53,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:42:53,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:42:53,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:42:53,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:42:53,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:42:53,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:42:53,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (1/1) ... [2021-11-23 13:42:53,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:42:53,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:42:53,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:42:53,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:42:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:42:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:42:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:42:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:42:53,944 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:42:53,946 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:42:54,348 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:42:54,354 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:42:54,354 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 13:42:54,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:54 BoogieIcfgContainer [2021-11-23 13:42:54,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:42:54,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:42:54,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:42:54,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:42:54,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:42:52" (1/3) ... [2021-11-23 13:42:54,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cbbf4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:54, skipping insertion in model container [2021-11-23 13:42:54,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:53" (2/3) ... [2021-11-23 13:42:54,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cbbf4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:42:54, skipping insertion in model container [2021-11-23 13:42:54,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:54" (3/3) ... [2021-11-23 13:42:54,364 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2021-11-23 13:42:54,370 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:42:54,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-23 13:42:54,434 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:42:54,442 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:42:54,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 13:42:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 40 states have (on average 1.65) internal successors, (66), 44 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) [2021-11-23 13:42:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 13:42:54,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:42:54,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:42:54,467 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 13:42:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash 889523607, now seen corresponding path program 1 times [2021-11-23 13:42:54,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:42:54,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397495927] [2021-11-23 13:42:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:54,493 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:42:54,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:42:54,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:42:54,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:42:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:54,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:42:54,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:42:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:54,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:42:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:54,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:42:54,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397495927] [2021-11-23 13:42:54,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397495927] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:42:54,725 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:42:54,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 13:42:54,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902107913] [2021-11-23 13:42:54,729 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:42:54,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:42:54,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:42:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:42:54,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:42:54,775 INFO L87 Difference]: Start difference. First operand has 45 states, 40 states have (on average 1.65) internal successors, (66), 44 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 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:42:54,884 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2021-11-23 13:42:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:42:54,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 13:42:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:42:54,898 INFO L225 Difference]: With dead ends: 99 [2021-11-23 13:42:54,899 INFO L226 Difference]: Without dead ends: 50 [2021-11-23 13:42:54,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:42:54,906 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 83 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:42:54,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 44 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:42:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-23 13:42:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2021-11-23 13:42:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 36 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) [2021-11-23 13:42:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2021-11-23 13:42:54,941 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 6 [2021-11-23 13:42:54,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:42:54,941 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-11-23 13:42:54,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:54,942 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2021-11-23 13:42:54,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 13:42:54,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:42:54,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:54,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:42:55,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:42:55,157 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 13:42:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1806855123, now seen corresponding path program 1 times [2021-11-23 13:42:55,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:42:55,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581234164] [2021-11-23 13:42:55,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:55,164 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:42:55,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:42:55,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:42:55,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:42:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:55,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:42:55,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:42:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:55,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:42:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:57,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:42:57,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581234164] [2021-11-23 13:42:57,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581234164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:42:57,387 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:42:57,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:42:57,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265071843] [2021-11-23 13:42:57,387 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:42:57,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:42:57,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:42:57,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:42:57,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:42:57,390 INFO L87 Difference]: Start difference. First operand 37 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) [2021-11-23 13:42:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:42:58,711 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2021-11-23 13:42:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:42:58,714 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 [2021-11-23 13:42:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:42:58,716 INFO L225 Difference]: With dead ends: 37 [2021-11-23 13:42:58,716 INFO L226 Difference]: Without dead ends: 35 [2021-11-23 13:42:58,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:42:58,726 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 10 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:42:58,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 112 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 25 Unchecked, 1.3s Time] [2021-11-23 13:42:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-23 13:42:58,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-23 13:42:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.25) internal successors, (40), 34 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) [2021-11-23 13:42:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-11-23 13:42:58,734 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2021-11-23 13:42:58,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:42:58,735 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-11-23 13:42:58,735 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) [2021-11-23 13:42:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-11-23 13:42:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:42:58,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:42:58,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:58,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:42:58,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:42:58,950 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 13:42:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash -260891071, now seen corresponding path program 1 times [2021-11-23 13:42:58,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:42:58,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080773790] [2021-11-23 13:42:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:58,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:42:58,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:42:58,953 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:42:58,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 13:42:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:59,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:42:59,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:42:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:59,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:42:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:59,181 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:42:59,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080773790] [2021-11-23 13:42:59,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080773790] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:42:59,181 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:42:59,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 13:42:59,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654825444] [2021-11-23 13:42:59,182 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:42:59,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:42:59,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:42:59,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:42:59,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:42:59,183 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:42:59,243 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2021-11-23 13:42:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:42:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 13:42:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:42:59,245 INFO L225 Difference]: With dead ends: 59 [2021-11-23 13:42:59,245 INFO L226 Difference]: Without dead ends: 35 [2021-11-23 13:42:59,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:42:59,247 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:42:59,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 40 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:42:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-23 13:42:59,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-23 13:42:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.0625) 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) [2021-11-23 13:42:59,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2021-11-23 13:42:59,261 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 12 [2021-11-23 13:42:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:42:59,261 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2021-11-23 13:42:59,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:42:59,262 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2021-11-23 13:42:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 13:42:59,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:42:59,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:42:59,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:42:59,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:42:59,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 13:42:59,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:42:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1557632932, now seen corresponding path program 1 times [2021-11-23 13:42:59,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:42:59,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016138418] [2021-11-23 13:42:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:42:59,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:42:59,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:42:59,466 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:42:59,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 13:42:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:42:59,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:42:59,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:42:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:42:59,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:43:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:02,683 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:43:02,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016138418] [2021-11-23 13:43:02,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016138418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:43:02,683 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:43:02,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:43:02,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258079472] [2021-11-23 13:43:02,684 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:43:02,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:43:02,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:43:02,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:43:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:43:02,685 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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) [2021-11-23 13:43:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:43:03,574 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2021-11-23 13:43:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:43:03,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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 [2021-11-23 13:43:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:43:03,576 INFO L225 Difference]: With dead ends: 35 [2021-11-23 13:43:03,576 INFO L226 Difference]: Without dead ends: 33 [2021-11-23 13:43:03,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:43:03,577 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:43:03,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 23 Unchecked, 0.9s Time] [2021-11-23 13:43:03,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-23 13:43:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-23 13:43:03,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:43:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2021-11-23 13:43:03,581 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 14 [2021-11-23 13:43:03,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:43:03,581 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2021-11-23 13:43:03,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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) [2021-11-23 13:43:03,581 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2021-11-23 13:43:03,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 13:43:03,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:43:03,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:43:03,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-23 13:43:03,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:43:03,783 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 13:43:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1314857025, now seen corresponding path program 1 times [2021-11-23 13:43:03,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:43:03,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686821642] [2021-11-23 13:43:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:03,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:43:03,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:43:03,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:43:03,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 13:43:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:03,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 13:43:03,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:43:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:06,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:43:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:13,666 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:43:13,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686821642] [2021-11-23 13:43:13,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686821642] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:43:13,666 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:43:13,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-23 13:43:13,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222902493] [2021-11-23 13:43:13,667 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:43:13,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 13:43:13,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:43:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 13:43:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:43:13,669 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:43:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:43:14,984 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2021-11-23 13:43:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:43:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 23 [2021-11-23 13:43:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:43:14,986 INFO L225 Difference]: With dead ends: 33 [2021-11-23 13:43:14,986 INFO L226 Difference]: Without dead ends: 31 [2021-11-23 13:43:14,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:43:14,988 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:43:14,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 181 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 29 Unchecked, 1.3s Time] [2021-11-23 13:43:14,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-23 13:43:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-23 13:43:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0) 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) [2021-11-23 13:43:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-11-23 13:43:14,993 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 23 [2021-11-23 13:43:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:43:14,994 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-11-23 13:43:14,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:43:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-11-23 13:43:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 13:43:14,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:43:14,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:43:15,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:15,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:43:15,196 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 13:43:15,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:43:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash 240169883, now seen corresponding path program 1 times [2021-11-23 13:43:15,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:43:15,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604815873] [2021-11-23 13:43:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:43:15,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:43:15,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:43:15,199 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:43:15,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 13:43:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:43:15,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 13:43:15,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:43:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:17,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:43:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:43:31,636 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:43:31,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604815873] [2021-11-23 13:43:31,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604815873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:43:31,637 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:43:31,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-23 13:43:31,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468488140] [2021-11-23 13:43:31,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:43:31,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 13:43:31,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:43:31,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 13:43:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-11-23 13:43:31,639 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:43:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:43:46,808 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-11-23 13:43:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:43:46,808 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 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 30 [2021-11-23 13:43:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:43:46,809 INFO L225 Difference]: With dead ends: 31 [2021-11-23 13:43:46,809 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:43:46,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2021-11-23 13:43:46,811 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 23 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:43:46,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 104 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 54 Unchecked, 2.9s Time] [2021-11-23 13:43:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:43:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:43:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:43:46,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:43:46,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-11-23 13:43:46,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:43:46,814 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:43:46,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:43:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:43:46,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:43:46,817 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-23 13:43:46,818 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-23 13:43:46,818 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-23 13:43:46,818 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-23 13:43:46,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:43:47,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:43:47,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:43:47,929 INFO L858 garLoopResultBuilder]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2021-11-23 13:43:47,929 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2021-11-23 13:43:47,929 INFO L858 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-11-23 13:43:47,929 INFO L858 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-11-23 13:43:47,929 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,930 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,930 INFO L858 garLoopResultBuilder]: For program point L1110(line 1110) no Hoare annotation was computed. [2021-11-23 13:43:47,930 INFO L858 garLoopResultBuilder]: For program point L1110-1(line 1110) no Hoare annotation was computed. [2021-11-23 13:43:47,930 INFO L854 garLoopResultBuilder]: At program point L1110-3(lines 1097 1113) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode 1.0))) (and (fp.eq |ULTIMATE.start_roundingTest_~roundDownSum~0#1| .cse0) (fp.eq (fp.add roundTowardNegative |ULTIMATE.start_roundingTest_~f1#1| |ULTIMATE.start_roundingTest_~f2#1|) ((_ to_fp 8 24) roundTowardNegative 1.0)) (fp.eq (fp.add currentRoundingMode |ULTIMATE.start_roundingTest_~f1#1| |ULTIMATE.start_roundingTest_~f2#1|) .cse0) (= |ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i#1| (_ bv1024 32)))) [2021-11-23 13:43:47,931 INFO L858 garLoopResultBuilder]: For program point L1110-4(line 1110) no Hoare annotation was computed. [2021-11-23 13:43:47,931 INFO L858 garLoopResultBuilder]: For program point L1110-5(line 1110) no Hoare annotation was computed. [2021-11-23 13:43:47,931 INFO L854 garLoopResultBuilder]: At program point L1110-7(lines 1097 1113) the Hoare annotation is: (not (= |ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i#1| (_ bv3072 32))) [2021-11-23 13:43:47,931 INFO L854 garLoopResultBuilder]: At program point L1135(lines 1116 1136) the Hoare annotation is: (not (= |ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i#1| (_ bv3072 32))) [2021-11-23 13:43:47,931 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2021-11-23 13:43:47,931 INFO L858 garLoopResultBuilder]: For program point L1103(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,931 INFO L858 garLoopResultBuilder]: For program point L1103-1(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L1103-4(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L1103-7(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point L-1-7(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,932 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-12(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-14(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-16(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-18(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,933 INFO L858 garLoopResultBuilder]: For program point L-1-19(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,934 INFO L858 garLoopResultBuilder]: For program point L-1-21(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,934 INFO L858 garLoopResultBuilder]: For program point L-1-23(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,934 INFO L858 garLoopResultBuilder]: For program point L-1-25(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,934 INFO L858 garLoopResultBuilder]: For program point L-1-27(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,934 INFO L858 garLoopResultBuilder]: For program point L-1-28(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,934 INFO L858 garLoopResultBuilder]: For program point L-1-30(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,935 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,935 INFO L858 garLoopResultBuilder]: For program point L-1-32(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,935 INFO L858 garLoopResultBuilder]: For program point L-1-34(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,935 INFO L858 garLoopResultBuilder]: For program point L-1-36(line -1) no Hoare annotation was computed. [2021-11-23 13:43:47,935 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2021-11-23 13:43:47,935 INFO L858 garLoopResultBuilder]: For program point L2(lines 2 4) no Hoare annotation was computed. [2021-11-23 13:43:47,939 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 13:43:47,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:43:47,948 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:47,949 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:47,952 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:47,953 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:47,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:43:47 BoogieIcfgContainer [2021-11-23 13:43:47,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:43:47,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:43:47,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:43:47,956 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:43:47,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:54" (3/4) ... [2021-11-23 13:43:47,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:43:47,970 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-23 13:43:47,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-23 13:43:47,971 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-23 13:43:47,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 13:43:48,009 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:43:48,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:43:48,011 INFO L158 Benchmark]: Toolchain (without parser) took 55231.92ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.8MB in the beginning and 28.1MB in the end (delta: 721.6kB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,011 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 34.3MB in the beginning and 34.2MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:43:48,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.21ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.7MB in the beginning and 38.0MB in the end (delta: -9.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.75ms. Allocated memory is still 73.4MB. Free memory was 38.0MB in the beginning and 35.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,012 INFO L158 Benchmark]: Boogie Preprocessor took 35.00ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 54.6MB in the end (delta: -19.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,013 INFO L158 Benchmark]: RCFGBuilder took 643.74ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 43.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,013 INFO L158 Benchmark]: TraceAbstraction took 53596.89ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 31.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,014 INFO L158 Benchmark]: Witness Printer took 54.48ms. Allocated memory is still 73.4MB. Free memory was 31.1MB in the beginning and 28.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:43:48,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 34.3MB in the beginning and 34.2MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.21ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.7MB in the beginning and 38.0MB in the end (delta: -9.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.75ms. Allocated memory is still 73.4MB. Free memory was 38.0MB in the beginning and 35.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.00ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 54.6MB in the end (delta: -19.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 643.74ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 43.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 53596.89ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 31.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 54.48ms. Allocated memory is still 73.4MB. Free memory was 31.1MB in the beginning and 28.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: 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, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 53.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 569 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 131 IncrementalHoareTripleChecker+Unchecked, 408 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 161 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 33.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 33 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 172 ConstructedInterpolants, 36 QuantifiedInterpolants, 1283 SizeOfPredicates, 49 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 4 specifications checked. All of them hold - InvariantResult [Line: 1097]: Loop Invariant [2021-11-23 13:43:48,026 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:48,026 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:48,027 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-11-23 13:43:48,027 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative Derived loop invariant: ((~fp.eq~FLOAT(roundDownSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~fp.eq~FLOAT(~fp.add~FLOAT(~roundTowardNegative, f1, f2), ~to_fp~LONGDOUBLE(~roundTowardNegative, 1.0))) && ~fp.eq~FLOAT(~fp.add~FLOAT(unknown-currentRoundingMode-unknown, f1, f2), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && unknown-i-unknown == 1024bv32 - InvariantResult [Line: 1116]: Loop Invariant Derived loop invariant: !(unknown-i-unknown == 3072bv32) - InvariantResult [Line: 1097]: Loop Invariant Derived loop invariant: !(unknown-i-unknown == 3072bv32) RESULT: Ultimate proved your program to be correct! [2021-11-23 13:43:48,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51737297-f296-43e3-b293-98af8fd8e514/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE