./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/ceil.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_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/ceil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 8d868c5feb94e26e91ab2a2dd39496da13afae98f0429761651f758b67796a5d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:40,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:40,790 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:40,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:40,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:40,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:40,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:40,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:40,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:40,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:40,824 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:40,824 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:40,825 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:40,826 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:40,826 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:40,827 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:40,828 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:40,828 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:40,829 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:40,830 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:40,830 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:40,831 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:40,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:40,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:40,834 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:40,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:40,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:40,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:40,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:40,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:40,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:40,838 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:40,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:40,839 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:40,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:40,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:40,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:40,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:40,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:40,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:40,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:40,845 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:40,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:40,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:40,847 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:40,847 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:40,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:40,848 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_1c4a00a9-2516-4662-8d0c-1c304619bec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d868c5feb94e26e91ab2a2dd39496da13afae98f0429761651f758b67796a5d [2023-11-23 20:33:41,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:41,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:41,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:41,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:41,174 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:41,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/floats-esbmc-regression/ceil.i [2023-11-23 20:33:44,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:44,815 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:44,815 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/sv-benchmarks/c/floats-esbmc-regression/ceil.i [2023-11-23 20:33:44,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data/ac29be9b4/850265f6e239413896883cfc353602fa/FLAG48196c988 [2023-11-23 20:33:44,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data/ac29be9b4/850265f6e239413896883cfc353602fa [2023-11-23 20:33:44,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:44,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:44,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:44,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:44,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:44,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc89060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:44, skipping insertion in model container [2023-11-23 20:33:44,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:44" (1/1) ... [2023-11-23 20:33:44,913 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:45,642 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_1c4a00a9-2516-4662-8d0c-1c304619bec0/sv-benchmarks/c/floats-esbmc-regression/ceil.i[36279,36292] [2023-11-23 20:33:45,651 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: ceil 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:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) 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 20:33:45,661 INFO L158 Benchmark]: Toolchain (without parser) took 808.48ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 118.8MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:45,662 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:45,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.93ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 118.8MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:45,664 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.93ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 118.8MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. 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: ceil de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: ceil: 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_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/ceil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 8d868c5feb94e26e91ab2a2dd39496da13afae98f0429761651f758b67796a5d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:48,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:48,351 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:33:48,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:48,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:48,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:48,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:48,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:48,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:48,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:48,391 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:48,391 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:48,392 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:48,397 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:48,397 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:48,398 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:48,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:48,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:48,400 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:48,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:48,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:48,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:48,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:48,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:48,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:48,403 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:48,403 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:48,404 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:48,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:48,405 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:48,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:48,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:48,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:48,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:48,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:48,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:48,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:48,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:48,409 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:48,410 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:48,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:48,410 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:48,411 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:48,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:48,411 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_1c4a00a9-2516-4662-8d0c-1c304619bec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d868c5feb94e26e91ab2a2dd39496da13afae98f0429761651f758b67796a5d [2023-11-23 20:33:48,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:48,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:48,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:48,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:48,891 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:48,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/floats-esbmc-regression/ceil.i [2023-11-23 20:33:52,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:52,507 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:52,508 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/sv-benchmarks/c/floats-esbmc-regression/ceil.i [2023-11-23 20:33:52,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data/471c673ca/dc2c7c746c8948cfbc1f5a1c55685e32/FLAG838f25ff2 [2023-11-23 20:33:52,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/data/471c673ca/dc2c7c746c8948cfbc1f5a1c55685e32 [2023-11-23 20:33:52,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:52,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:52,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:52,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:52,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:52,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:52" (1/1) ... [2023-11-23 20:33:52,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db4d493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:52, skipping insertion in model container [2023-11-23 20:33:52,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:52" (1/1) ... [2023-11-23 20:33:52,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:53,463 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_1c4a00a9-2516-4662-8d0c-1c304619bec0/sv-benchmarks/c/floats-esbmc-regression/ceil.i[36279,36292] [2023-11-23 20:33:53,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:53,496 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:53,529 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_1c4a00a9-2516-4662-8d0c-1c304619bec0/sv-benchmarks/c/floats-esbmc-regression/ceil.i[36279,36292] [2023-11-23 20:33:53,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:53,699 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:53,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53 WrapperNode [2023-11-23 20:33:53,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:53,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:53,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:53,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:53,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,776 INFO L138 Inliner]: procedures = 448, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-23 20:33:53,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:53,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:53,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:53,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:53,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:53,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:53,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:53,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:53,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (1/1) ... [2023-11-23 20:33:53,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:53,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:53,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:53,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:33:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:33:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:54,050 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:54,054 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:54,199 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:54,246 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:54,246 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:33:54,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:54 BoogieIcfgContainer [2023-11-23 20:33:54,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:54,250 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:54,250 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:54,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:54,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:52" (1/3) ... [2023-11-23 20:33:54,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae6e4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:54, skipping insertion in model container [2023-11-23 20:33:54,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:53" (2/3) ... [2023-11-23 20:33:54,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae6e4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:54, skipping insertion in model container [2023-11-23 20:33:54,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:54" (3/3) ... [2023-11-23 20:33:54,258 INFO L112 eAbstractionObserver]: Analyzing ICFG ceil.i [2023-11-23 20:33:54,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:54,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:54,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:54,346 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;@1ced862b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:54,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 20:33:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:33:54,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:54,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 20:33:54,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:54,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash 58909814, now seen corresponding path program 1 times [2023-11-23 20:33:54,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:54,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478815195] [2023-11-23 20:33:54,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:54,390 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 20:33:54,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:54,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:54,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:54,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:33:54,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:54,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:54,659 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:33:54,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478815195] [2023-11-23 20:33:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478815195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:54,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:54,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:33:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279330988] [2023-11-23 20:33:54,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:54,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:33:54,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:33:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:33:54,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:54,706 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:33:54,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:54,856 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2023-11-23 20:33:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:33:54,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 20:33:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:54,868 INFO L225 Difference]: With dead ends: 32 [2023-11-23 20:33:54,868 INFO L226 Difference]: Without dead ends: 17 [2023-11-23 20:33:54,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:33:54,876 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:54,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 27 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:33:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-23 20:33:54,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-23 20:33:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 20:33:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-11-23 20:33:54,921 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 5 [2023-11-23 20:33:54,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:54,922 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-11-23 20:33:54,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:33:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-23 20:33:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:33:54,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:54,925 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:54,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:55,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:55,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:55,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash -12385579, now seen corresponding path program 1 times [2023-11-23 20:33:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:33:55,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397234432] [2023-11-23 20:33:55,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:55,153 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 20:33:55,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:33:55,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:55,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:55,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:33:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:55,388 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 20:33:55,388 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:33:55,390 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:33:55,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:55,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 20:33:55,597 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 20:33:55,600 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:33:55,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:55 BoogieIcfgContainer [2023-11-23 20:33:55,626 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:33:55,627 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:33:55,627 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:33:55,628 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:33:55,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:54" (3/4) ... [2023-11-23 20:33:55,629 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:33:55,669 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:33:55,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:33:55,672 INFO L158 Benchmark]: Toolchain (without parser) took 3107.32ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 43.4MB in the beginning and 49.3MB in the end (delta: -5.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:55,672 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 69.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:55,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1135.52ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 43.3MB in the beginning and 31.5MB in the end (delta: 11.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-23 20:33:55,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.91ms. Allocated memory is still 86.0MB. Free memory was 31.5MB in the beginning and 62.0MB in the end (delta: -30.6MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:55,678 INFO L158 Benchmark]: Boogie Preprocessor took 51.98ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 60.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:55,678 INFO L158 Benchmark]: RCFGBuilder took 417.49ms. Allocated memory is still 86.0MB. Free memory was 60.4MB in the beginning and 49.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:33:55,679 INFO L158 Benchmark]: TraceAbstraction took 1376.75ms. Allocated memory is still 86.0MB. Free memory was 48.9MB in the beginning and 51.4MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:55,679 INFO L158 Benchmark]: Witness Printer took 42.61ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:55,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 69.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1135.52ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 43.3MB in the beginning and 31.5MB in the end (delta: 11.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.91ms. Allocated memory is still 86.0MB. Free memory was 31.5MB in the beginning and 62.0MB in the end (delta: -30.6MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.98ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 60.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.49ms. Allocated memory is still 86.0MB. Free memory was 60.4MB in the beginning and 49.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1376.75ms. Allocated memory is still 86.0MB. Free memory was 48.9MB in the beginning and 51.4MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.61ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 878]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L882] CALL __VERIFIER_assert(ceil(2.4) == 3.0) VAL [\old(cond)=1] [L878] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L882] RET __VERIFIER_assert(ceil(2.4) == 3.0) [L883] CALL __VERIFIER_assert(ceil(-2.4) == -2.0) VAL [\old(cond)=1] [L878] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L883] RET __VERIFIER_assert(ceil(-2.4) == -2.0) [L885] double c = ceil(-0.0); VAL [c=0.0] [L886] CALL __VERIFIER_assert((c == -0.0) && (sizeof (c) == sizeof (float) ? __signbitf (c) : sizeof (c) == sizeof (double) ? __signbit (c) : __signbitl (c))) VAL [\old(cond)=0] [L878] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L878] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 2 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:33:55,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4a00a9-2516-4662-8d0c-1c304619bec0/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE