./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:45:39,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:45:39,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:45:39,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:45:39,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:45:39,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:45:39,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:45:39,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:45:39,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:45:39,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:45:39,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:45:39,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:45:39,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:45:39,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:45:39,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:45:39,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:45:39,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:45:39,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:45:39,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:45:39,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:45:39,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:45:39,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:45:39,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:45:39,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:45:39,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:45:39,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:45:39,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:45:39,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:45:39,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:45:39,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:45:39,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:45:39,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:45:39,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:45:39,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:45:39,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:45:39,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:45:39,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:45:39,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:45:39,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:45:39,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:45:39,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:45:39,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:45:39,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:45:39,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:45:39,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:45:39,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:45:40,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:45:40,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:45:40,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:45:40,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:45:40,004 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:45:40,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:45:40,005 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:45:40,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:45:40,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:45:40,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:45:40,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:45:40,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:45:40,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:45:40,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:45:40,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:45:40,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:45:40,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:45:40,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:45:40,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:45:40,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:45:40,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:45:40,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:45:40,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:45:40,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:45:40,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:45:40,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:45:40,014 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:45:40,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:45:40,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:45:40,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:45:40,015 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_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc [2021-11-13 18:45:40,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:45:40,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:45:40,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:45:40,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:45:40,321 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:45:40,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2021-11-13 18:45:40,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/7bbef6e54/7dbc0582422a4ecdba4b8674d3331830/FLAG77c55e2f4 [2021-11-13 18:45:40,981 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:45:40,982 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2021-11-13 18:45:40,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/7bbef6e54/7dbc0582422a4ecdba4b8674d3331830/FLAG77c55e2f4 [2021-11-13 18:45:41,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/7bbef6e54/7dbc0582422a4ecdba4b8674d3331830 [2021-11-13 18:45:41,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:45:41,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:45:41,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:45:41,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:45:41,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:45:41,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:45:41" (1/1) ... [2021-11-13 18:45:41,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c50a9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:41, skipping insertion in model container [2021-11-13 18:45:41,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:45:41" (1/1) ... [2021-11-13 18:45:41,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:45:41,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:45:41,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i[38168,38181] [2021-11-13 18:45:41,864 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1759) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1103) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) 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:1381) 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:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 18:45:41,870 INFO L158 Benchmark]: Toolchain (without parser) took 609.14ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 65.5MB in the beginning and 93.1MB in the end (delta: -27.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:45:41,871 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:41,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.43ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 65.2MB in the beginning and 93.1MB in the end (delta: -27.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:45:41,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.43ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 65.2MB in the beginning and 93.1MB in the end (delta: -27.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:45:44,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:45:44,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:45:44,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:45:44,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:45:44,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:45:44,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:45:44,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:45:44,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:45:44,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:45:44,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:45:44,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:45:44,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:45:44,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:45:44,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:45:44,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:45:44,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:45:44,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:45:44,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:45:44,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:45:44,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:45:44,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:45:44,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:45:44,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:45:44,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:45:44,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:45:44,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:45:44,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:45:44,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:45:44,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:45:44,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:45:44,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:45:44,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:45:44,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:45:44,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:45:44,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:45:44,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:45:44,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:45:44,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:45:44,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:45:44,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:45:44,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:45:44,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:45:44,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:45:44,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:45:44,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:45:44,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:45:44,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:45:44,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:45:44,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:45:44,222 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:45:44,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:45:44,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:45:44,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:45:44,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:45:44,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:45:44,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:45:44,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:45:44,224 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:45:44,224 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:45:44,225 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:45:44,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:45:44,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:45:44,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:45:44,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:45:44,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:45:44,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:45:44,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:45:44,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:45:44,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:45:44,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:45:44,227 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:45:44,227 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:45:44,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:45:44,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:45:44,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:45:44,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:45:44,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:45:44,228 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_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc [2021-11-13 18:45:44,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:45:44,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:45:44,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:45:44,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:45:44,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:45:44,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2021-11-13 18:45:44,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/797967b57/82faaf27dc284165beae5b7c684e8665/FLAG5bd856bfc [2021-11-13 18:45:45,501 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:45:45,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2021-11-13 18:45:45,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/797967b57/82faaf27dc284165beae5b7c684e8665/FLAG5bd856bfc [2021-11-13 18:45:45,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/data/797967b57/82faaf27dc284165beae5b7c684e8665 [2021-11-13 18:45:45,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:45:45,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:45:45,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:45:45,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:45:45,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:45:45,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:45:45" (1/1) ... [2021-11-13 18:45:45,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb93f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:45, skipping insertion in model container [2021-11-13 18:45:45,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:45:45" (1/1) ... [2021-11-13 18:45:45,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:45:45,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:45:46,262 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i[38168,38181] [2021-11-13 18:45:46,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:45:46,285 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:45:46,311 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i[38168,38181] [2021-11-13 18:45:46,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:45:46,461 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:45:46,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46 WrapperNode [2021-11-13 18:45:46,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:45:46,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:45:46,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:45:46,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:45:46,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:45:46,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:45:46,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:45:46,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:45:46,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:45:46,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:45:46,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:45:46,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:45:46,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (1/1) ... [2021-11-13 18:45:46,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:45:46,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:46,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:46,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:45:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:45:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:45:46,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:45:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:45:46,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:45:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:45:47,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:45:47,907 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:45:47,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:47 BoogieIcfgContainer [2021-11-13 18:45:47,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:45:47,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:45:47,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:45:47,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:45:47,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:45:45" (1/3) ... [2021-11-13 18:45:47,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22739ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:45:47, skipping insertion in model container [2021-11-13 18:45:47,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:46" (2/3) ... [2021-11-13 18:45:47,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22739ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:45:47, skipping insertion in model container [2021-11-13 18:45:47,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:47" (3/3) ... [2021-11-13 18:45:47,918 INFO L111 eAbstractionObserver]: Analyzing ICFG trunc_nondet_2.i [2021-11-13 18:45:47,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:45:47,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:45:47,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:45:47,980 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:45:47,980 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:45:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 18:45:48,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 18:45:48,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:48,003 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:48,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:48,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1694693467, now seen corresponding path program 1 times [2021-11-13 18:45:48,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:45:48,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430063851] [2021-11-13 18:45:48,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:48,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:45:48,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:45:48,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:45:48,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:45:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:48,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 18:45:48,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:45:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 18:45:48,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:45:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-13 18:45:48,435 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:45:48,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430063851] [2021-11-13 18:45:48,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430063851] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 18:45:48,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:45:48,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-13 18:45:48,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265327192] [2021-11-13 18:45:48,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:45:48,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:45:48,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:45:48,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:45:48,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:45:48,488 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 18:45:48,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:45:48,512 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2021-11-13 18:45:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:45:48,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2021-11-13 18:45:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:45:48,521 INFO L225 Difference]: With dead ends: 31 [2021-11-13 18:45:48,521 INFO L226 Difference]: Without dead ends: 13 [2021-11-13 18:45:48,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:45:48,528 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:45:48,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:45:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-13 18:45:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-13 18:45:48,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 18:45:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-13 18:45:48,566 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 20 [2021-11-13 18:45:48,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:45:48,566 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-13 18:45:48,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-13 18:45:48,567 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-13 18:45:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 18:45:48,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:48,569 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:48,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:48,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:45:48,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:48,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1957438941, now seen corresponding path program 1 times [2021-11-13 18:45:48,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:45:48,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190664688] [2021-11-13 18:45:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:48,785 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:45:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:45:48,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:45:48,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:45:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:50,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 18:45:50,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:46:33,207 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (and (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775807 64))) (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775808 64))) (not (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|)))))) is different from false [2021-11-13 18:46:35,230 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (and (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775807 64))) (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775808 64))) (not (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|)))))) is different from true [2021-11-13 18:46:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:46:35,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:46:43,403 WARN L838 $PredicateComparison]: unable to prove that (fp.eq (fp.roundToIntegral roundTowardZero |c_ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) c_currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |c_ULTIMATE.start_main_~d~0#1|))) is different from false [2021-11-13 18:46:57,371 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp.roundToIntegral roundTowardZero |c_ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) c_currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |c_ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |c_ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |c_ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775807 64))))) is different from true [2021-11-13 18:47:42,864 WARN L227 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:48:35,840 WARN L227 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:49:07,439 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (or (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) c_currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775807 64)))))) is different from false [2021-11-13 18:49:09,466 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (or (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) c_currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775807 64)))))) is different from true [2021-11-13 18:50:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 18:50:03,279 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:50:03,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190664688] [2021-11-13 18:50:03,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190664688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:03,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:03,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 16 [2021-11-13 18:50:03,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067892711] [2021-11-13 18:50:03,280 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:03,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-13 18:50:03,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:50:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 18:50:03,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=98, Unknown=9, NotChecked=92, Total=240 [2021-11-13 18:50:03,283 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 11 states have internal predecessors, (19), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-13 18:50:05,337 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (or (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) c_currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775807 64)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:50:45,845 WARN L227 SmtUtils]: Spent 17.65s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:50:47,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:50,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:34,141 WARN L227 SmtUtils]: Spent 22.71s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:51:36,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:39,662 WARN L860 $PredicateComparison]: unable to prove that (and (fp.eq (fp.roundToIntegral roundTowardZero |c_ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) c_currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |c_ULTIMATE.start_main_~d~0#1|))) (fp.gt |c_ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775808 64))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.lt |c_ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv9223372036854775807 64)))) is different from true [2021-11-13 18:51:41,700 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (exists ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (and (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775807 64))) (let ((.cse0 (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse0)) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse0))) (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775808 64)))))) is different from false [2021-11-13 18:51:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:41,724 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-13 18:51:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:51:41,724 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 11 states have internal predecessors, (19), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-11-13 18:51:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:41,725 INFO L225 Difference]: With dead ends: 13 [2021-11-13 18:51:41,725 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:51:41,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 140.5s TimeCoverageRelationStatistics Valid=64, Invalid=151, Unknown=23, NotChecked=224, Total=462 [2021-11-13 18:51:41,729 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8410.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.71ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 8528.45ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:41,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 19 Invalid, 76 Unknown, 0 Unchecked, 1.71ms Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 2 Unknown, 47 Unchecked, 8528.45ms Time] [2021-11-13 18:51:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:51:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:51:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:51:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:51:41,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-11-13 18:51:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:41,733 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:51:41,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 11 states have internal predecessors, (19), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-13 18:51:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:51:41,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:51:41,737 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:51:41,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:51:41,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:51:41,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:52:01,045 WARN L227 SmtUtils]: Spent 19.09s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-13 18:52:21,152 WARN L227 SmtUtils]: Spent 20.10s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-13 18:52:32,254 WARN L227 SmtUtils]: Spent 11.10s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-13 18:52:32,264 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:52:32,264 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:52:32,264 INFO L861 garLoopResultBuilder]: At program point L1023(lines 1012 1024) the Hoare annotation is: true [2021-11-13 18:52:32,264 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:52:32,265 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:52:32,265 INFO L858 garLoopResultBuilder]: For program point L1018(line 1018) no Hoare annotation was computed. [2021-11-13 18:52:32,265 INFO L854 garLoopResultBuilder]: At program point L1016(line 1016) the Hoare annotation is: (and (or (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv9223372036854775807 64))))) (not (fp.isNaN |ULTIMATE.start_main_~d~0#1|)) (not (fp.isInfinite |ULTIMATE.start_main_~d~0#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 18:52:32,265 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1008) no Hoare annotation was computed. [2021-11-13 18:52:32,266 INFO L854 garLoopResultBuilder]: At program point L1015(line 1015) the Hoare annotation is: (and (forall ((|ULTIMATE.start_main_~d~0#1| (_ FloatingPoint 11 53))) (or (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv9223372036854775807 64)))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 18:52:32,266 INFO L854 garLoopResultBuilder]: At program point L1015-1(line 1015) the Hoare annotation is: (and (or (fp.eq (fp.roundToIntegral roundTowardZero |ULTIMATE.start_main_~d~0#1|) ((_ to_fp 11 53) currentRoundingMode ((_ fp.to_sbv 64) roundTowardZero |ULTIMATE.start_main_~d~0#1|))) (not (fp.gt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv9223372036854775808 64)))) (not (fp.lt |ULTIMATE.start_main_~d~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv9223372036854775807 64))))) (not (fp.isInfinite |ULTIMATE.start_main_~d~0#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 18:52:32,266 INFO L858 garLoopResultBuilder]: For program point L1008(line 1008) no Hoare annotation was computed. [2021-11-13 18:52:32,266 INFO L858 garLoopResultBuilder]: For program point L1008-1(line 1008) no Hoare annotation was computed. [2021-11-13 18:52:32,266 INFO L861 garLoopResultBuilder]: At program point L1008-3(line 1008) the Hoare annotation is: true [2021-11-13 18:52:32,266 INFO L858 garLoopResultBuilder]: For program point L994-2(lines 993 995) no Hoare annotation was computed. [2021-11-13 18:52:32,267 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 993 995) the Hoare annotation is: true [2021-11-13 18:52:32,267 INFO L858 garLoopResultBuilder]: For program point L994(line 994) no Hoare annotation was computed. [2021-11-13 18:52:32,267 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 993 995) no Hoare annotation was computed. [2021-11-13 18:52:32,270 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 18:52:32,271 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:52:32,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:52:32 BoogieIcfgContainer [2021-11-13 18:52:32,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:52:32,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:52:32,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:52:32,281 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:52:32,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:47" (3/4) ... [2021-11-13 18:52:32,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:52:32,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-13 18:52:32,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-13 18:52:32,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:52:32,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:52:32,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:52:32,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:52:32,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:52:32,336 INFO L158 Benchmark]: Toolchain (without parser) took 406643.83ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 40.4MB in the beginning and 29.9MB in the end (delta: 10.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,336 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:52:32,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.37ms. Allocated memory is still 62.9MB. Free memory was 40.2MB in the beginning and 29.7MB in the end (delta: 10.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.96ms. Allocated memory is still 62.9MB. Free memory was 29.7MB in the beginning and 27.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,338 INFO L158 Benchmark]: Boogie Preprocessor took 38.95ms. Allocated memory is still 62.9MB. Free memory was 27.3MB in the beginning and 25.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,338 INFO L158 Benchmark]: RCFGBuilder took 1326.30ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 25.8MB in the beginning and 54.8MB in the end (delta: -29.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,339 INFO L158 Benchmark]: TraceAbstraction took 404368.29ms. Allocated memory is still 81.8MB. Free memory was 54.4MB in the beginning and 32.0MB in the end (delta: 22.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,339 INFO L158 Benchmark]: Witness Printer took 54.63ms. Allocated memory is still 81.8MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:52:32,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.37ms. Allocated memory is still 62.9MB. Free memory was 40.2MB in the beginning and 29.7MB in the end (delta: 10.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.96ms. Allocated memory is still 62.9MB. Free memory was 29.7MB in the beginning and 27.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.95ms. Allocated memory is still 62.9MB. Free memory was 27.3MB in the beginning and 25.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1326.30ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 25.8MB in the beginning and 54.8MB in the end (delta: -29.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 404368.29ms. Allocated memory is still 81.8MB. Free memory was 54.4MB in the beginning and 32.0MB in the end (delta: 22.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 54.63ms. Allocated memory is still 81.8MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1008]: 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 404.3s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 98.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 50.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 8528.45ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 8410.57ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 47 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 23 mSDtfsCounter, 24 mSolverCounterSat, 2.31ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 140.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 91 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 50.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 252.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 7 QuantifiedInterpolants, 412 SizeOfPredicates, 9 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 44/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1008]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1012]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 18:52:32,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74176f6b-2c9c-4c04-bdff-87a1c6ecf6e1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE