./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c889a68fefb5d3ab7a86f1d54a05cc5e3a2e8771939a929650cd0207e277b44e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:25,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:25,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:32:25,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:25,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:25,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:25,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:25,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:25,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:25,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:25,992 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:25,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:25,993 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:25,995 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:25,995 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:25,996 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:25,996 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:25,996 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:25,997 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:25,998 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:25,998 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:25,999 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:26,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:26,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:26,002 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:26,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:26,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:26,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:26,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:26,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:26,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:26,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:26,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:26,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:26,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:26,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:26,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:26,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:26,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:26,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:26,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:26,008 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:26,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:26,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:26,009 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:26,009 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:26,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:26,010 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c889a68fefb5d3ab7a86f1d54a05cc5e3a2e8771939a929650cd0207e277b44e [2023-11-23 21:32:26,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:26,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:26,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:26,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:26,366 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:26,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i [2023-11-23 21:32:29,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:30,277 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:30,277 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i [2023-11-23 21:32:30,297 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data/8586d95f6/0682007cbd314abd827fba7f58d53b64/FLAGbeb89cf45 [2023-11-23 21:32:30,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data/8586d95f6/0682007cbd314abd827fba7f58d53b64 [2023-11-23 21:32:30,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:30,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:30,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:30,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:30,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:30,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:30" (1/1) ... [2023-11-23 21:32:30,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e847d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:30, skipping insertion in model container [2023-11-23 21:32:30,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:30" (1/1) ... [2023-11-23 21:32:30,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:31,049 WARN L240 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_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i[38162,38175] [2023-11-23 21:32:31,067 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2490) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2490) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:178) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:662) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:533) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1491) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:383) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2023-11-23 21:32:31,079 INFO L158 Benchmark]: Toolchain (without parser) took 750.47ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 99.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:32:31,080 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 107.0MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:31,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.66ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 99.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:32:31,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 107.0MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.66ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 99.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. 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:610) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c889a68fefb5d3ab7a86f1d54a05cc5e3a2e8771939a929650cd0207e277b44e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:33,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:34,103 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:32:34,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:34,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:34,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:34,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:34,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:34,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:34,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:34,166 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:34,166 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:34,167 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:34,169 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:34,169 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:34,170 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:34,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:34,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:34,172 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:32:34,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:32:34,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:34,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:34,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:34,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:34,176 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:32:34,176 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:32:34,177 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:32:34,177 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:32:34,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:34,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:34,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:34,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:32:34,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:34,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:34,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:34,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:34,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:34,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:34,183 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:32:34,184 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:32:34,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:34,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:34,185 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:34,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:34,186 INFO L153 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_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c889a68fefb5d3ab7a86f1d54a05cc5e3a2e8771939a929650cd0207e277b44e [2023-11-23 21:32:34,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:34,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:34,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:34,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:34,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:34,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i [2023-11-23 21:32:38,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:38,626 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:38,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i [2023-11-23 21:32:38,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data/40275a2db/e7f42c384b2942e08bb60ac25774f1fb/FLAG34728dc4a [2023-11-23 21:32:38,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/data/40275a2db/e7f42c384b2942e08bb60ac25774f1fb [2023-11-23 21:32:38,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:38,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:38,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:38,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:38,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:38,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:38" (1/1) ... [2023-11-23 21:32:38,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506fbada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:38, skipping insertion in model container [2023-11-23 21:32:38,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:38" (1/1) ... [2023-11-23 21:32:38,808 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:39,841 WARN L240 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_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i[38162,38175] [2023-11-23 21:32:39,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:39,898 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:39,956 WARN L240 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_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/sv-benchmarks/c/floats-esbmc-regression/ceil_nondet.i[38162,38175] [2023-11-23 21:32:39,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:40,239 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:40,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40 WrapperNode [2023-11-23 21:32:40,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:40,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:40,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:40,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:40,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,351 INFO L138 Inliner]: procedures = 461, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-23 21:32:40,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:40,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:40,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:40,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:40,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:40,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:40,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:40,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:40,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (1/1) ... [2023-11-23 21:32:40,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:40,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:40,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:40,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:32:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2023-11-23 21:32:40,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2023-11-23 21:32:40,709 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:40,712 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:40,961 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:40,991 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:40,991 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:32:40,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:40 BoogieIcfgContainer [2023-11-23 21:32:40,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:40,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:40,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:41,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:41,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:38" (1/3) ... [2023-11-23 21:32:41,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dedfd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:41, skipping insertion in model container [2023-11-23 21:32:41,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:40" (2/3) ... [2023-11-23 21:32:41,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dedfd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:41, skipping insertion in model container [2023-11-23 21:32:41,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:40" (3/3) ... [2023-11-23 21:32:41,005 INFO L112 eAbstractionObserver]: Analyzing ICFG ceil_nondet.i [2023-11-23 21:32:41,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:41,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:41,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:41,115 INFO L357 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31da4a74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:41,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:41,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:32:41,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 21:32:41,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:41,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:41,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:41,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:41,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1654435431, now seen corresponding path program 1 times [2023-11-23 21:32:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:41,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787330942] [2023-11-23 21:32:41,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:41,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:41,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:41,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:32:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:41,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:32:41,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:32:41,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:41,494 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:41,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787330942] [2023-11-23 21:32:41,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787330942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:41,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:41,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:41,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903640344] [2023-11-23 21:32:41,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:41,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:41,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:41,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:41,561 INFO L87 Difference]: Start difference. First operand has 33 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:41,647 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2023-11-23 21:32:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:41,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2023-11-23 21:32:41,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:41,665 INFO L225 Difference]: With dead ends: 66 [2023-11-23 21:32:41,665 INFO L226 Difference]: Without dead ends: 33 [2023-11-23 21:32:41,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:41,680 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:41,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-23 21:32:41,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-23 21:32:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.263157894736842) internal successors, (24), 21 states have internal predecessors, (24), 9 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-23 21:32:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2023-11-23 21:32:41,754 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 26 [2023-11-23 21:32:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:41,756 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2023-11-23 21:32:41,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2023-11-23 21:32:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 21:32:41,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:41,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:41,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:32:41,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:41,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:41,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash 535627726, now seen corresponding path program 1 times [2023-11-23 21:32:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:41,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322746221] [2023-11-23 21:32:41,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:41,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:41,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:41,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:41,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:32:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:42,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:32:42,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:32:42,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:42,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:42,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322746221] [2023-11-23 21:32:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322746221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:42,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:42,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234623868] [2023-11-23 21:32:42,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:42,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:42,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:42,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:42,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:42,110 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:42,148 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2023-11-23 21:32:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:42,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2023-11-23 21:32:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:42,151 INFO L225 Difference]: With dead ends: 63 [2023-11-23 21:32:42,151 INFO L226 Difference]: Without dead ends: 35 [2023-11-23 21:32:42,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:42,154 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:42,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:42,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-23 21:32:42,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-23 21:32:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.263157894736842) internal successors, (24), 21 states have internal predecessors, (24), 9 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-23 21:32:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2023-11-23 21:32:42,167 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 27 [2023-11-23 21:32:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:42,167 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2023-11-23 21:32:42,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:42,168 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2023-11-23 21:32:42,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:32:42,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:42,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:42,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:42,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:42,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:42,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1758906178, now seen corresponding path program 1 times [2023-11-23 21:32:42,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:42,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532083463] [2023-11-23 21:32:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:42,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:42,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:42,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:42,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:32:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:42,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:32:42,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 21:32:42,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:42,895 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:42,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532083463] [2023-11-23 21:32:42,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532083463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:42,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:42,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:32:42,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783505822] [2023-11-23 21:32:42,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:42,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:32:42,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:32:42,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:32:42,899 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:43,323 INFO L93 Difference]: Finished difference Result 79 states and 100 transitions. [2023-11-23 21:32:43,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:32:43,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2023-11-23 21:32:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:43,332 INFO L225 Difference]: With dead ends: 79 [2023-11-23 21:32:43,332 INFO L226 Difference]: Without dead ends: 59 [2023-11-23 21:32:43,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:32:43,335 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 26 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:43,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 143 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:32:43,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-23 21:32:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2023-11-23 21:32:43,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 36 states have internal predecessors, (42), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-23 21:32:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2023-11-23 21:32:43,369 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 28 [2023-11-23 21:32:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:43,371 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2023-11-23 21:32:43,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2023-11-23 21:32:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:32:43,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:43,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:43,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:43,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:43,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:43,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash 465983321, now seen corresponding path program 1 times [2023-11-23 21:32:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:43,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910406988] [2023-11-23 21:32:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:43,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:43,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:43,583 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:43,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:32:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:43,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:32:43,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:43,919 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:32:43,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:43,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:43,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910406988] [2023-11-23 21:32:43,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910406988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:43,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:43,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:32:43,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752689286] [2023-11-23 21:32:43,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:43,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:32:43,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:43,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:32:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:32:43,930 INFO L87 Difference]: Start difference. First operand 57 states and 74 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:44,449 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2023-11-23 21:32:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:32:44,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2023-11-23 21:32:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:44,457 INFO L225 Difference]: With dead ends: 77 [2023-11-23 21:32:44,457 INFO L226 Difference]: Without dead ends: 57 [2023-11-23 21:32:44,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:32:44,460 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 25 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:44,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 169 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:32:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-23 21:32:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2023-11-23 21:32:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 13 states have call successors, (15) [2023-11-23 21:32:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2023-11-23 21:32:44,477 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 29 [2023-11-23 21:32:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:44,477 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2023-11-23 21:32:44,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2023-11-23 21:32:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:32:44,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:44,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:44,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-23 21:32:44,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:44,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:44,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:44,686 INFO L85 PathProgramCache]: Analyzing trace with hash 842198137, now seen corresponding path program 1 times [2023-11-23 21:32:44,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:44,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259076634] [2023-11-23 21:32:44,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:44,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:44,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:44,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:44,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-23 21:32:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:44,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:32:44,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:32:45,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:45,091 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:45,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259076634] [2023-11-23 21:32:45,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259076634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:45,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:45,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:32:45,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582537445] [2023-11-23 21:32:45,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:45,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:32:45,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:45,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:32:45,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:32:45,096 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:45,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:45,197 INFO L93 Difference]: Finished difference Result 90 states and 109 transitions. [2023-11-23 21:32:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:32:45,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2023-11-23 21:32:45,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:45,200 INFO L225 Difference]: With dead ends: 90 [2023-11-23 21:32:45,200 INFO L226 Difference]: Without dead ends: 40 [2023-11-23 21:32:45,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:32:45,206 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:45,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 110 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:32:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-23 21:32:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-23 21:32:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:32:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2023-11-23 21:32:45,228 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 30 [2023-11-23 21:32:45,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:45,229 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2023-11-23 21:32:45,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:45,230 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-23 21:32:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:32:45,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:45,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:45,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:45,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:45,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:45,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash -255927372, now seen corresponding path program 1 times [2023-11-23 21:32:45,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717734099] [2023-11-23 21:32:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:45,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:45,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:45,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:45,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-23 21:32:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:45,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:32:45,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:32:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:32:45,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:32:45,746 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:32:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717734099] [2023-11-23 21:32:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717734099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:45,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:45,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:32:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610110550] [2023-11-23 21:32:45,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:45,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:32:45,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:32:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:32:45,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:32:45,750 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:45,811 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2023-11-23 21:32:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:32:45,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2023-11-23 21:32:45,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:45,817 INFO L225 Difference]: With dead ends: 60 [2023-11-23 21:32:45,817 INFO L226 Difference]: Without dead ends: 40 [2023-11-23 21:32:45,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:32:45,824 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:45,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 122 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:32:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-23 21:32:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-23 21:32:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.08) internal successors, (27), 26 states have internal predecessors, (27), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:32:45,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-23 21:32:45,846 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 31 [2023-11-23 21:32:45,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:45,847 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-23 21:32:45,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:32:45,848 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-23 21:32:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:32:45,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:45,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:45,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:46,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:46,057 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:46,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1065273998, now seen corresponding path program 1 times [2023-11-23 21:32:46,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:32:46,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786240383] [2023-11-23 21:32:46,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:46,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:46,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:32:46,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:32:46,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 21:32:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:32:46,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:32:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:32:46,237 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 21:32:46,237 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:32:46,239 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:32:46,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:32:46,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:32:46,445 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:46,448 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:32:46,466 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret86 could not be translated [2023-11-23 21:32:46,467 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret88 could not be translated [2023-11-23 21:32:46,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:32:46 BoogieIcfgContainer [2023-11-23 21:32:46,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:32:46,477 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:32:46,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:32:46,477 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:32:46,478 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:40" (3/4) ... [2023-11-23 21:32:46,480 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:32:46,482 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:32:46,483 INFO L158 Benchmark]: Toolchain (without parser) took 7798.89ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 74.8MB in the beginning and 73.5MB in the end (delta: 1.3MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-23 21:32:46,483 INFO L158 Benchmark]: CDTParser took 1.47ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:46,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1555.00ms. Allocated memory is still 100.7MB. Free memory was 74.6MB in the beginning and 48.2MB in the end (delta: 26.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:46,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.80ms. Allocated memory is still 100.7MB. Free memory was 48.2MB in the beginning and 45.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:32:46,485 INFO L158 Benchmark]: Boogie Preprocessor took 71.65ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 44.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:46,485 INFO L158 Benchmark]: RCFGBuilder took 567.70ms. Allocated memory is still 100.7MB. Free memory was 44.5MB in the beginning and 71.6MB in the end (delta: -27.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-23 21:32:46,486 INFO L158 Benchmark]: TraceAbstraction took 5480.08ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 70.8MB in the beginning and 73.5MB in the end (delta: -2.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-23 21:32:46,486 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 127.9MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:32:46,489 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1555.00ms. Allocated memory is still 100.7MB. Free memory was 74.6MB in the beginning and 48.2MB in the end (delta: 26.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.80ms. Allocated memory is still 100.7MB. Free memory was 48.2MB in the beginning and 45.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.65ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 44.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 567.70ms. Allocated memory is still 100.7MB. Free memory was 44.5MB in the beginning and 71.6MB in the end (delta: -27.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5480.08ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 70.8MB in the beginning and 73.5MB in the end (delta: -2.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 127.9MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret86 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret88 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - UnprovableResult [Line: 1005]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of rint at line 1017. Possible FailurePath: [L1011] double d = __VERIFIER_nondet_double(); [L1012] CALL assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isinff (d) : sizeof (d) == sizeof (double) ? __isinf (d) : __isinfl (d))) VAL [\old(cond)=1] [L991] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L1012] RET assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isinff (d) : sizeof (d) == sizeof (double) ? __isinf (d) : __isinfl (d))) VAL [d=0.0] [L1013] CALL assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isnanf (d) : sizeof (d) == sizeof (double) ? __isnan (d) : __isnanl (d))) VAL [\old(cond)=1] [L991] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L1013] RET assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isnanf (d) : sizeof (d) == sizeof (double) ? __isnan (d) : __isnanl (d))) VAL [d=0.0] [L1015] int save_round = fegetround(); VAL [d=0.0, save_round=1] [L1016] FCALL fesetround(0x800) VAL [d=0.0, save_round=1] [L1017] double result = rint(d); [L1018] FCALL fesetround(save_round) VAL [d=0.0, result=2.0, save_round=1] [L1020] CALL __VERIFIER_assert(ceil(d) == result) VAL [\old(cond)=0] [L1005] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L1005] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 681 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 432 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 249 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 4 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 47/47 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:32:46,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24cc34da-584b-42e1-88a7-a6ab05f0dc4f/bin/utaipan-verify-mE87zJ7Ire/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: UNKNOWN: Overapproximated counterexample