./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/rint.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/rint.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje --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 24195858fe99a26316e7c38e61598aafdb4b380e3cd36e11fd34d1bc33016c49 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:01:26,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:01:26,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:01:26,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:01:26,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:01:26,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:01:26,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:01:26,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:01:26,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:01:26,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:01:26,715 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:01:26,715 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:01:26,716 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:01:26,716 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:01:26,716 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:01:26,719 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:01:26,719 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:01:26,719 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:01:26,720 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:01:26,720 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:01:26,720 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:01:26,726 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:01:26,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:01:26,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:01:26,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:01:26,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:01:26,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:01:26,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:01:26,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:01:26,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:01:26,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:01:26,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:01:26,729 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:01:26,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:01:26,729 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:01:26,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:01:26,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:01:26,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:01:26,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:26,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:01:26,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:01:26,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:01:26,733 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:01:26,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:01:26,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:01:26,734 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:01:26,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:01:26,735 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_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24195858fe99a26316e7c38e61598aafdb4b380e3cd36e11fd34d1bc33016c49 [2024-11-09 07:01:26,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:01:27,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:01:27,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:01:27,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:01:27,058 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:01:27,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-esbmc-regression/rint.i Unable to find full path for "g++" [2024-11-09 07:01:29,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:01:29,531 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:01:29,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/sv-benchmarks/c/floats-esbmc-regression/rint.i [2024-11-09 07:01:29,554 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data/52130a4b9/4473f464be2c411cbb45c5e5e49ada53/FLAG67c2d64b5 [2024-11-09 07:01:29,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data/52130a4b9/4473f464be2c411cbb45c5e5e49ada53 [2024-11-09 07:01:29,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:01:29,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:01:29,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:29,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:01:29,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:01:29,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:29" (1/1) ... [2024-11-09 07:01:29,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731aea5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:29, skipping insertion in model container [2024-11-09 07:01:29,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:29" (1/1) ... [2024-11-09 07:01:29,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:01:30,259 WARN L250 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_44853ba0-4975-4f70-881a-36b7f220e811/sv-benchmarks/c/floats-esbmc-regression/rint.i[38063,38076] [2024-11-09 07:01:30,279 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:736) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1625) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1520) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3634) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1577) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) 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) [2024-11-09 07:01:30,287 INFO L158 Benchmark]: Toolchain (without parser) took 711.44ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 124.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:01:30,288 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:01:30,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.10ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 125.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:01:30,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.10ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 125.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:736) 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/rint.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje --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 24195858fe99a26316e7c38e61598aafdb4b380e3cd36e11fd34d1bc33016c49 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:01:32,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:01:32,653 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 07:01:32,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:01:32,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:01:32,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:01:32,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:01:32,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:01:32,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:01:32,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:01:32,706 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:01:32,706 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:01:32,708 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:01:32,708 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:01:32,709 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:01:32,709 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:01:32,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:01:32,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:01:32,715 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:01:32,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:01:32,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:01:32,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:01:32,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:01:32,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:01:32,717 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:01:32,717 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:01:32,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:01:32,718 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:01:32,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:01:32,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:01:32,719 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:01:32,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:01:32,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:01:32,721 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:01:32,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:01:32,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:32,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:01:32,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:01:32,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:01:32,725 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:01:32,725 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:01:32,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:01:32,727 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:01:32,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24195858fe99a26316e7c38e61598aafdb4b380e3cd36e11fd34d1bc33016c49 [2024-11-09 07:01:33,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:01:33,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:01:33,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:01:33,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:01:33,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:01:33,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-esbmc-regression/rint.i Unable to find full path for "g++" [2024-11-09 07:01:35,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:01:35,864 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:01:35,864 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/sv-benchmarks/c/floats-esbmc-regression/rint.i [2024-11-09 07:01:35,889 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data/63064d2ad/4c72f61aadf343b88403b3723f82e628/FLAG37892c6a2 [2024-11-09 07:01:36,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/data/63064d2ad/4c72f61aadf343b88403b3723f82e628 [2024-11-09 07:01:36,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:01:36,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:01:36,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:36,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:01:36,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:01:36,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:36" (1/1) ... [2024-11-09 07:01:36,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3b9f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:36, skipping insertion in model container [2024-11-09 07:01:36,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:36" (1/1) ... [2024-11-09 07:01:36,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:01:36,872 WARN L250 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_44853ba0-4975-4f70-881a-36b7f220e811/sv-benchmarks/c/floats-esbmc-regression/rint.i[38063,38076] [2024-11-09 07:01:36,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:36,939 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:01:36,998 WARN L250 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_44853ba0-4975-4f70-881a-36b7f220e811/sv-benchmarks/c/floats-esbmc-regression/rint.i[38063,38076] [2024-11-09 07:01:37,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:37,187 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:01:37,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37 WrapperNode [2024-11-09 07:01:37,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:37,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:37,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:01:37,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:01:37,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,272 INFO L138 Inliner]: procedures = 463, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2024-11-09 07:01:37,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:37,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:01:37,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:01:37,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:01:37,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:01:37,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:01:37,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:01:37,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:01:37,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (1/1) ... [2024-11-09 07:01:37,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:01:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:01:37,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:01:37,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:01:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:01:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:01:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 07:01:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:01:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:01:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:01:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:01:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:01:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:01:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:01:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-11-09 07:01:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-11-09 07:01:37,571 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:01:37,574 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:01:37,897 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-09 07:01:37,897 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:01:37,910 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:01:37,910 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:01:37,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:37 BoogieIcfgContainer [2024-11-09 07:01:37,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:01:37,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:01:37,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:01:37,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:01:37,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:01:36" (1/3) ... [2024-11-09 07:01:37,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14145f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:37, skipping insertion in model container [2024-11-09 07:01:37,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:37" (2/3) ... [2024-11-09 07:01:37,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14145f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:37, skipping insertion in model container [2024-11-09 07:01:37,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:37" (3/3) ... [2024-11-09 07:01:37,921 INFO L112 eAbstractionObserver]: Analyzing ICFG rint.i [2024-11-09 07:01:37,939 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:01:37,940 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:01:38,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:01:38,009 INFO L333 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, 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;@8032ead, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:01:38,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:01:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 07:01:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 07:01:38,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:38,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:38,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:38,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:38,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1668647131, now seen corresponding path program 1 times [2024-11-09 07:01:38,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:38,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486979826] [2024-11-09 07:01:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:38,049 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 [2024-11-09 07:01:38,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:38,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:38,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:38,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:01:38,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:38,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:38,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:38,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486979826] [2024-11-09 07:01:38,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486979826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:38,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:01:38,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246057864] [2024-11-09 07:01:38,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:38,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:38,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:38,313 INFO L87 Difference]: Start difference. First operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:38,419 INFO L93 Difference]: Finished difference Result 145 states and 242 transitions. [2024-11-09 07:01:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:38,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-09 07:01:38,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:38,437 INFO L225 Difference]: With dead ends: 145 [2024-11-09 07:01:38,437 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 07:01:38,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:38,448 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 15 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:38,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 169 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:01:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 07:01:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 61. [2024-11-09 07:01:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 42 states have internal predecessors, (48), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 07:01:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2024-11-09 07:01:38,521 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 13 [2024-11-09 07:01:38,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:38,524 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2024-11-09 07:01:38,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2024-11-09 07:01:38,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:01:38,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:38,527 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:38,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:38,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:38,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:38,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:38,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1306927662, now seen corresponding path program 1 times [2024-11-09 07:01:38,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:38,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998397394] [2024-11-09 07:01:38,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:38,730 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 [2024-11-09 07:01:38,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:38,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:38,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:38,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:01:38,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:38,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:38,963 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:38,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998397394] [2024-11-09 07:01:38,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998397394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:38,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:38,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:01:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518822055] [2024-11-09 07:01:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:38,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:01:38,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:01:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:01:38,973 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:39,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:39,328 INFO L93 Difference]: Finished difference Result 136 states and 207 transitions. [2024-11-09 07:01:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:01:39,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-09 07:01:39,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:39,332 INFO L225 Difference]: With dead ends: 136 [2024-11-09 07:01:39,334 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 07:01:39,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:01:39,337 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 11 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:39,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 356 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:01:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 07:01:39,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 66. [2024-11-09 07:01:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 45 states have internal predecessors, (52), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 18 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-09 07:01:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2024-11-09 07:01:39,365 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 14 [2024-11-09 07:01:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:39,365 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2024-11-09 07:01:39,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2024-11-09 07:01:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 07:01:39,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:39,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:39,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:39,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:39,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:39,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1940901793, now seen corresponding path program 1 times [2024-11-09 07:01:39,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:39,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347549013] [2024-11-09 07:01:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:39,573 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 [2024-11-09 07:01:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:39,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:39,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:39,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:01:39,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:39,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:39,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:39,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347549013] [2024-11-09 07:01:39,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347549013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:39,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:39,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:01:39,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120469673] [2024-11-09 07:01:39,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:39,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:01:39,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:39,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:01:39,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:01:39,816 INFO L87 Difference]: Start difference. First operand 66 states and 94 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:40,117 INFO L93 Difference]: Finished difference Result 138 states and 201 transitions. [2024-11-09 07:01:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:01:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-09 07:01:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:40,121 INFO L225 Difference]: With dead ends: 138 [2024-11-09 07:01:40,121 INFO L226 Difference]: Without dead ends: 76 [2024-11-09 07:01:40,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:01:40,126 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 9 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:40,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 438 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:01:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-09 07:01:40,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2024-11-09 07:01:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 46 states have internal predecessors, (53), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 18 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-09 07:01:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 95 transitions. [2024-11-09 07:01:40,146 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 95 transitions. Word has length 15 [2024-11-09 07:01:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:40,147 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 95 transitions. [2024-11-09 07:01:40,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2024-11-09 07:01:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 07:01:40,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:40,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:40,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 07:01:40,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:40,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:40,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash -73057537, now seen corresponding path program 1 times [2024-11-09 07:01:40,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:40,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118921959] [2024-11-09 07:01:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:40,354 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 [2024-11-09 07:01:40,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:40,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:40,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:40,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:01:40,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:40,508 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:40,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:40,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118921959] [2024-11-09 07:01:40,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118921959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:40,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:40,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:01:40,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279036406] [2024-11-09 07:01:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:40,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:01:40,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:40,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:01:40,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:01:40,514 INFO L87 Difference]: Start difference. First operand 67 states and 95 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:40,815 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2024-11-09 07:01:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:01:40,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-09 07:01:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:40,819 INFO L225 Difference]: With dead ends: 149 [2024-11-09 07:01:40,819 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 07:01:40,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:01:40,823 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 12 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:40,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 410 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:01:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 07:01:40,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2024-11-09 07:01:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 50 states have internal predecessors, (58), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2024-11-09 07:01:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2024-11-09 07:01:40,843 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 15 [2024-11-09 07:01:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:40,844 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2024-11-09 07:01:40,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:40,845 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2024-11-09 07:01:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:01:40,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:40,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:40,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:41,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:41,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:41,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash 123076622, now seen corresponding path program 1 times [2024-11-09 07:01:41,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:41,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920816413] [2024-11-09 07:01:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:41,049 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 [2024-11-09 07:01:41,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:41,050 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:41,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:41,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:01:41,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:41,198 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:41,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:41,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920816413] [2024-11-09 07:01:41,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920816413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:41,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:41,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:01:41,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008341028] [2024-11-09 07:01:41,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:41,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:01:41,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:41,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:01:41,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:01:41,201 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:41,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:41,324 INFO L93 Difference]: Finished difference Result 163 states and 234 transitions. [2024-11-09 07:01:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:01:41,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 07:01:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:41,327 INFO L225 Difference]: With dead ends: 163 [2024-11-09 07:01:41,327 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:01:41,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:01:41,328 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 14 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:41,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 298 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:01:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:01:41,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 74. [2024-11-09 07:01:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 51 states have internal predecessors, (58), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (24), 19 states have call predecessors, (24), 21 states have call successors, (24) [2024-11-09 07:01:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 104 transitions. [2024-11-09 07:01:41,340 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 104 transitions. Word has length 16 [2024-11-09 07:01:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:41,340 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 104 transitions. [2024-11-09 07:01:41,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 104 transitions. [2024-11-09 07:01:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:01:41,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:41,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:41,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:41,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:41,542 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:41,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:41,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2111033584, now seen corresponding path program 1 times [2024-11-09 07:01:41,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:41,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698740272] [2024-11-09 07:01:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:41,544 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 [2024-11-09 07:01:41,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:41,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:41,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:41,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:01:41,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:41,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:41,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:41,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698740272] [2024-11-09 07:01:41,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698740272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:41,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:41,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:01:41,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025035593] [2024-11-09 07:01:41,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:41,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:01:41,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:41,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:01:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:01:41,705 INFO L87 Difference]: Start difference. First operand 74 states and 104 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:41,856 INFO L93 Difference]: Finished difference Result 161 states and 231 transitions. [2024-11-09 07:01:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:01:41,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 07:01:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:41,858 INFO L225 Difference]: With dead ends: 161 [2024-11-09 07:01:41,858 INFO L226 Difference]: Without dead ends: 92 [2024-11-09 07:01:41,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:01:41,860 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 15 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:41,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 303 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:01:41,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-09 07:01:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 74. [2024-11-09 07:01:41,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 51 states have internal predecessors, (58), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 19 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-09 07:01:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2024-11-09 07:01:41,881 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 16 [2024-11-09 07:01:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:41,882 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 103 transitions. [2024-11-09 07:01:41,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:41,882 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 103 transitions. [2024-11-09 07:01:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:01:41,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:41,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:41,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:42,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:42,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:42,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:42,085 INFO L85 PathProgramCache]: Analyzing trace with hash -350263469, now seen corresponding path program 1 times [2024-11-09 07:01:42,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:42,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791820617] [2024-11-09 07:01:42,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:42,086 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 [2024-11-09 07:01:42,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:42,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:42,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:42,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:01:42,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:42,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:42,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:42,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791820617] [2024-11-09 07:01:42,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791820617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:42,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:42,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:01:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752081221] [2024-11-09 07:01:42,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:42,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:01:42,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:01:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:01:42,233 INFO L87 Difference]: Start difference. First operand 74 states and 103 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:42,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:42,508 INFO L93 Difference]: Finished difference Result 163 states and 236 transitions. [2024-11-09 07:01:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:01:42,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 07:01:42,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:42,511 INFO L225 Difference]: With dead ends: 163 [2024-11-09 07:01:42,512 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:01:42,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:01:42,514 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 13 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:42,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 360 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:01:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:01:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2024-11-09 07:01:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 55 states have internal predecessors, (62), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (25), 19 states have call predecessors, (25), 21 states have call successors, (25) [2024-11-09 07:01:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2024-11-09 07:01:42,527 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 16 [2024-11-09 07:01:42,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:42,528 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2024-11-09 07:01:42,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2024-11-09 07:01:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 07:01:42,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:42,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:42,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:42,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:42,730 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:42,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2107584284, now seen corresponding path program 1 times [2024-11-09 07:01:42,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:42,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858260678] [2024-11-09 07:01:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:42,732 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 [2024-11-09 07:01:42,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:42,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:42,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 (9)] Waiting until timeout for monitored process [2024-11-09 07:01:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:42,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:01:42,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:42,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:42,893 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:42,893 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:42,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858260678] [2024-11-09 07:01:42,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858260678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:42,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:42,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:01:42,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387209276] [2024-11-09 07:01:42,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:42,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:01:42,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:42,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:01:42,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:01:42,896 INFO L87 Difference]: Start difference. First operand 79 states and 109 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:43,136 INFO L93 Difference]: Finished difference Result 162 states and 225 transitions. [2024-11-09 07:01:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:01:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-09 07:01:43,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:43,138 INFO L225 Difference]: With dead ends: 162 [2024-11-09 07:01:43,138 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 07:01:43,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:01:43,139 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 9 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:43,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 462 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:01:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 07:01:43,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 83. [2024-11-09 07:01:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.2) internal successors, (66), 58 states have internal predecessors, (66), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (25), 20 states have call predecessors, (25), 21 states have call successors, (25) [2024-11-09 07:01:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 113 transitions. [2024-11-09 07:01:43,150 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 113 transitions. Word has length 17 [2024-11-09 07:01:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:43,150 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 113 transitions. [2024-11-09 07:01:43,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:01:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 113 transitions. [2024-11-09 07:01:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 07:01:43,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:43,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:43,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:01:43,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:43,355 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:43,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:43,355 INFO L85 PathProgramCache]: Analyzing trace with hash -801050492, now seen corresponding path program 1 times [2024-11-09 07:01:43,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:43,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313684502] [2024-11-09 07:01:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:43,356 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 [2024-11-09 07:01:43,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:43,357 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:01:43,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 (10)] Waiting until timeout for monitored process [2024-11-09 07:01:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:01:43,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:01:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:01:43,456 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 07:01:43,457 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:01:43,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:01:43,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 (10)] Ended with exit code 0 [2024-11-09 07:01:43,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:01:43,665 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:43,682 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:01:43,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:01:43 BoogieIcfgContainer [2024-11-09 07:01:43,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:01:43,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:01:43,686 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:01:43,686 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:01:43,687 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:37" (3/4) ... [2024-11-09 07:01:43,689 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:01:43,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:01:43,691 INFO L158 Benchmark]: Toolchain (without parser) took 7516.08ms. Allocated memory was 88.1MB in the beginning and 144.7MB in the end (delta: 56.6MB). Free memory was 58.2MB in the beginning and 81.5MB in the end (delta: -23.3MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-09 07:01:43,692 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 32.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:01:43,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1011.81ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 51.6MB in the end (delta: 6.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-09 07:01:43,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.23ms. Allocated memory is still 88.1MB. Free memory was 51.6MB in the beginning and 48.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:01:43,692 INFO L158 Benchmark]: Boogie Preprocessor took 52.91ms. Allocated memory is still 88.1MB. Free memory was 48.4MB in the beginning and 46.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:01:43,693 INFO L158 Benchmark]: RCFGBuilder took 584.35ms. Allocated memory was 88.1MB in the beginning and 119.5MB in the end (delta: 31.5MB). Free memory was 46.8MB in the beginning and 83.6MB in the end (delta: -36.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-09 07:01:43,693 INFO L158 Benchmark]: TraceAbstraction took 5771.69ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 83.0MB in the beginning and 81.5MB in the end (delta: 1.5MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2024-11-09 07:01:43,694 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 144.7MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:01:43,695 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 32.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1011.81ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 51.6MB in the end (delta: 6.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.23ms. Allocated memory is still 88.1MB. Free memory was 51.6MB in the beginning and 48.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.91ms. Allocated memory is still 88.1MB. Free memory was 48.4MB in the beginning and 46.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.35ms. Allocated memory was 88.1MB in the beginning and 119.5MB in the end (delta: 31.5MB). Free memory was 46.8MB in the beginning and 83.6MB in the end (delta: -36.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5771.69ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 83.0MB in the beginning and 81.5MB in the end (delta: 1.5MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 144.7MB. Free memory is still 81.5MB. There was no memory consumed. 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 - UnprovableResult [Line: 997]: 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 1006. Possible FailurePath: [L1000] int const modes[] = {0x400, 0, 0xc00, 0x800}; [L1002] int i = 0; VAL [i=0, modes={3:0}] [L1002] COND FALSE !(i < sizeof(modes) / sizeof(int)) VAL [i=0, modes={3:0}] [L1002] COND TRUE i < sizeof(modes) / sizeof(int) [L1003] EXPR modes[i] VAL [i=0, modes={3:0}] [L1003] FCALL fesetround(modes[i]) VAL [i=0, modes={3:0}] [L1004] modes[i] [L1005] case 0x400: [L1006] CALL __VERIFIER_assert(rint(12.9) == 12.) VAL [\old(cond)=0] [L997] COND TRUE !(cond) VAL [\old(cond)=0] [L997] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 2796 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2115 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 567 IncrementalHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 681 mSDtfsCounter, 567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=8, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 112 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 SizeOfPredicates, 38 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:01:43,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44853ba0-4975-4f70-881a-36b7f220e811/bin/utaipan-verify-YMUCfTKeje/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