./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:55,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:56,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:59:56,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:56,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:56,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:56,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:56,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:56,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:56,181 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:56,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:56,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:56,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:56,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:56,187 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:56,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:56,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:56,188 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:56,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:56,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:56,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:56,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:56,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:56,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:56,191 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:56,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:56,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:56,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:56,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:56,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:56,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:56,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:56,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:56,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:56,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:56,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:56,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:56,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:56,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:56,197 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:56,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:56,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:56,197 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2023-11-26 11:59:56,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:56,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:56,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:56,583 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:56,584 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:56,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2023-11-26 12:00:00,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:00,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:00,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2023-11-26 12:00:00,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data/7dbc9d881/1dba18289ced4690a3294534fdc21aca/FLAG2603e40ad [2023-11-26 12:00:00,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data/7dbc9d881/1dba18289ced4690a3294534fdc21aca [2023-11-26 12:00:00,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:00,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:00,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:00,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:00,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:00,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720f71d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00, skipping insertion in model container [2023-11-26 12:00:00,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,891 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:01,612 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:719) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1908) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-26 12:00:01,620 INFO L158 Benchmark]: Toolchain (without parser) took 795.18ms. Allocated memory is still 161.5MB. Free memory was 121.6MB in the beginning and 108.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:01,622 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:01,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.09ms. Allocated memory is still 161.5MB. Free memory was 121.6MB in the beginning and 108.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:01,626 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.09ms. Allocated memory is still 161.5MB. Free memory was 121.6MB in the beginning and 108.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. 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:719) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:04,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:04,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:00:04,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:04,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:04,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:04,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:04,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:04,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:04,944 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:04,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:04,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:04,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:04,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:04,949 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:04,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:04,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:04,951 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:04,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:04,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:04,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:04,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:04,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:04,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:00:04,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:00:04,957 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:00:04,957 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:04,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:04,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:04,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:04,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:04,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:04,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:04,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:04,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:04,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:04,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:04,964 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:00:04,965 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:00:04,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:04,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:04,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:04,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:04,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:04,967 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:00:04,967 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2023-11-26 12:00:05,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:05,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:05,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:05,547 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:05,548 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:05,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2023-11-26 12:00:09,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:09,479 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:09,480 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2023-11-26 12:00:09,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data/d549a0b9e/4433a7f9bb6d4b4ba6310e14268d3799/FLAG00eb964eb [2023-11-26 12:00:09,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/data/d549a0b9e/4433a7f9bb6d4b4ba6310e14268d3799 [2023-11-26 12:00:09,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:09,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:09,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:09,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:09,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:09,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:09" (1/1) ... [2023-11-26 12:00:09,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a60eb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:09, skipping insertion in model container [2023-11-26 12:00:09,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:09" (1/1) ... [2023-11-26 12:00:09,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:10,420 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2023-11-26 12:00:10,426 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2023-11-26 12:00:10,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:10,459 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:10,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma STDC FENV_ACCESS OFF [1095] [2023-11-26 12:00:10,520 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2023-11-26 12:00:10,521 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2023-11-26 12:00:10,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:10,764 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:10,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10 WrapperNode [2023-11-26 12:00:10,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:10,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:10,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:10,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:10,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,857 INFO L138 Inliner]: procedures = 461, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-26 12:00:10,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:10,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:10,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:10,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:10,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,911 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:00:10,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:10,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:10,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:10,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:10,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (1/1) ... [2023-11-26 12:00:10,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:10,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:11,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:11,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:00:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure roundingTest [2023-11-26 12:00:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure roundingTest [2023-11-26 12:00:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:00:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:00:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2023-11-26 12:00:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2023-11-26 12:00:11,227 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:11,229 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:11,635 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:11,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:11,667 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:00:11,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:11 BoogieIcfgContainer [2023-11-26 12:00:11,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:11,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:11,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:11,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:11,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:09" (1/3) ... [2023-11-26 12:00:11,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7741f58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:11, skipping insertion in model container [2023-11-26 12:00:11,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:10" (2/3) ... [2023-11-26 12:00:11,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7741f58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:11, skipping insertion in model container [2023-11-26 12:00:11,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:11" (3/3) ... [2023-11-26 12:00:11,684 INFO L112 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2023-11-26 12:00:11,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:11,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:00:11,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:11,797 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@20fe2172, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:11,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:00:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 21 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 12:00:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:00:11,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:11,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:11,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:11,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:11,823 INFO L85 PathProgramCache]: Analyzing trace with hash 473139210, now seen corresponding path program 1 times [2023-11-26 12:00:11,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:11,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4962466] [2023-11-26 12:00:11,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:11,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:11,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:11,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:11,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:00:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:12,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:12,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:12,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:12,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:12,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4962466] [2023-11-26 12:00:12,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4962466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:12,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:12,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:12,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15435126] [2023-11-26 12:00:12,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:12,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:12,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:12,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:12,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:12,229 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 21 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-26 12:00:12,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:12,307 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2023-11-26 12:00:12,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:12,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 10 [2023-11-26 12:00:12,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:12,321 INFO L225 Difference]: With dead ends: 62 [2023-11-26 12:00:12,322 INFO L226 Difference]: Without dead ends: 29 [2023-11-26 12:00:12,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:12,334 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:12,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:12,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-26 12:00:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-26 12:00:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:00:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-26 12:00:12,397 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2023-11-26 12:00:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:12,398 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-26 12:00:12,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-26 12:00:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-26 12:00:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:00:12,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:12,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:12,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:12,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:12,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:12,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1185516445, now seen corresponding path program 1 times [2023-11-26 12:00:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:12,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488924032] [2023-11-26 12:00:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:12,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:12,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:12,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:12,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 12:00:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:12,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:00:12,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:13,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:13,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:13,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488924032] [2023-11-26 12:00:13,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488924032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:13,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:13,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:13,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26567146] [2023-11-26 12:00:13,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:13,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:13,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:13,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:13,348 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-26 12:00:15,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:15,457 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2023-11-26 12:00:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:00:15,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 11 [2023-11-26 12:00:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:15,474 INFO L225 Difference]: With dead ends: 92 [2023-11-26 12:00:15,474 INFO L226 Difference]: Without dead ends: 84 [2023-11-26 12:00:15,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:00:15,476 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 69 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:15,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-26 12:00:15,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-26 12:00:15,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 62. [2023-11-26 12:00:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.275) internal successors, (51), 41 states have internal predecessors, (51), 14 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (20), 13 states have call predecessors, (20), 12 states have call successors, (20) [2023-11-26 12:00:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 85 transitions. [2023-11-26 12:00:15,500 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 85 transitions. Word has length 11 [2023-11-26 12:00:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:15,500 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 85 transitions. [2023-11-26 12:00:15,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-26 12:00:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 85 transitions. [2023-11-26 12:00:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:00:15,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:15,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:15,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:15,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:15,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:15,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:15,708 INFO L85 PathProgramCache]: Analyzing trace with hash -921088443, now seen corresponding path program 1 times [2023-11-26 12:00:15,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:15,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459210612] [2023-11-26 12:00:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:15,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:15,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:15,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:15,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 12:00:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:15,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:15,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:15,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:15,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:15,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459210612] [2023-11-26 12:00:15,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459210612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:15,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:15,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:15,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312023401] [2023-11-26 12:00:15,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:15,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:15,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:15,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:15,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:15,816 INFO L87 Difference]: Start difference. First operand 62 states and 85 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-26 12:00:15,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:15,857 INFO L93 Difference]: Finished difference Result 118 states and 160 transitions. [2023-11-26 12:00:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:15,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 12 [2023-11-26 12:00:15,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:15,860 INFO L225 Difference]: With dead ends: 118 [2023-11-26 12:00:15,861 INFO L226 Difference]: Without dead ends: 58 [2023-11-26 12:00:15,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:15,864 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:15,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:15,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-26 12:00:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-26 12:00:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.162162162162162) internal successors, (43), 38 states have internal predecessors, (43), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-26 12:00:15,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2023-11-26 12:00:15,880 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 12 [2023-11-26 12:00:15,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:15,880 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2023-11-26 12:00:15,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-26 12:00:15,881 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2023-11-26 12:00:15,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 12:00:15,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:15,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:15,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:16,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:16,086 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:16,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash -845925517, now seen corresponding path program 1 times [2023-11-26 12:00:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:16,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753131644] [2023-11-26 12:00:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:16,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:16,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:16,092 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:16,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-26 12:00:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:16,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:16,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:16,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:16,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753131644] [2023-11-26 12:00:16,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753131644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:16,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:16,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:16,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861366659] [2023-11-26 12:00:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:16,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:16,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:16,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:16,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:16,199 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:16,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:16,226 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2023-11-26 12:00:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:16,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-26 12:00:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:16,237 INFO L225 Difference]: With dead ends: 95 [2023-11-26 12:00:16,238 INFO L226 Difference]: Without dead ends: 58 [2023-11-26 12:00:16,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:16,243 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:16,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-26 12:00:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-26 12:00:16,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.135135135135135) internal successors, (42), 38 states have internal predecessors, (42), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-26 12:00:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2023-11-26 12:00:16,267 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 19 [2023-11-26 12:00:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:16,268 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2023-11-26 12:00:16,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:16,269 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2023-11-26 12:00:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 12:00:16,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:16,271 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:16,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:16,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:16,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:16,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:16,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1157356128, now seen corresponding path program 1 times [2023-11-26 12:00:16,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:16,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369018484] [2023-11-26 12:00:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:16,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:16,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:16,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:16,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-26 12:00:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:16,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:00:16,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:17,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:17,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:17,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369018484] [2023-11-26 12:00:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369018484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:17,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:17,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:17,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981602503] [2023-11-26 12:00:17,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:17,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:17,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:17,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:17,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:17,126 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:18,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:18,853 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2023-11-26 12:00:18,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:00:18,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-26 12:00:18,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:18,856 INFO L225 Difference]: With dead ends: 66 [2023-11-26 12:00:18,856 INFO L226 Difference]: Without dead ends: 64 [2023-11-26 12:00:18,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:00:18,858 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 36 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:18,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 171 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 12:00:18,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-26 12:00:18,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2023-11-26 12:00:18,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 12 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-26 12:00:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2023-11-26 12:00:18,872 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 20 [2023-11-26 12:00:18,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:18,873 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2023-11-26 12:00:18,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2023-11-26 12:00:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 12:00:18,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:18,874 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:18,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:19,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:19,079 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:19,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1214614430, now seen corresponding path program 1 times [2023-11-26 12:00:19,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:19,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641157116] [2023-11-26 12:00:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:19,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:19,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:19,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:19,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-26 12:00:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:19,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:19,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:19,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:19,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:19,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641157116] [2023-11-26 12:00:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641157116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:19,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911510939] [2023-11-26 12:00:19,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:19,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:19,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:19,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:19,223 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:19,260 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2023-11-26 12:00:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-26 12:00:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:19,262 INFO L225 Difference]: With dead ends: 81 [2023-11-26 12:00:19,262 INFO L226 Difference]: Without dead ends: 42 [2023-11-26 12:00:19,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:19,264 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:19,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-26 12:00:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-11-26 12:00:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:00:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2023-11-26 12:00:19,274 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 20 [2023-11-26 12:00:19,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:19,274 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2023-11-26 12:00:19,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2023-11-26 12:00:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 12:00:19,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:19,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:19,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:19,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:19,487 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:19,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash 529120432, now seen corresponding path program 1 times [2023-11-26 12:00:19,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:19,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204865740] [2023-11-26 12:00:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:19,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:19,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:19,489 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:19,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-26 12:00:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:19,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:00:19,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:21,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 12:00:21,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:21,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:21,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204865740] [2023-11-26 12:00:21,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204865740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:21,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:21,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 12:00:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941944361] [2023-11-26 12:00:21,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:21,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 12:00:21,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:21,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:00:21,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:21,801 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 11 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 12:00:24,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:24,898 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-11-26 12:00:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:00:24,899 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2023-11-26 12:00:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:24,900 INFO L225 Difference]: With dead ends: 42 [2023-11-26 12:00:24,901 INFO L226 Difference]: Without dead ends: 40 [2023-11-26 12:00:24,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-26 12:00:24,902 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:24,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 187 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-26 12:00:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-26 12:00:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2023-11-26 12:00:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:00:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2023-11-26 12:00:24,911 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 42 [2023-11-26 12:00:24,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:24,912 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2023-11-26 12:00:24,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 12:00:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2023-11-26 12:00:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 12:00:24,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:24,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:24,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:25,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:25,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:25,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1242601651, now seen corresponding path program 1 times [2023-11-26 12:00:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125488191] [2023-11-26 12:00:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:25,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:25,122 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:25,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:00:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:00:25,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 12:00:27,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:27,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125488191] [2023-11-26 12:00:27,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125488191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:27,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:27,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 12:00:27,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986073579] [2023-11-26 12:00:27,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:27,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 12:00:27,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:27,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:00:27,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:27,590 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:00:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:32,291 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2023-11-26 12:00:32,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:00:32,292 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 51 [2023-11-26 12:00:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:32,293 INFO L225 Difference]: With dead ends: 40 [2023-11-26 12:00:32,293 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:00:32,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-26 12:00:32,295 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:32,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 197 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-26 12:00:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:00:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:00:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:00:32,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2023-11-26 12:00:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:32,297 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:32,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:00:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:00:32,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:00:32,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-26 12:00:32,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-26 12:00:32,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 12:00:32,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:32,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:00:35,070 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.setCurrentRoundingModeEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,070 INFO L899 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,070 INFO L899 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,070 INFO L899 garLoopResultBuilder]: For program point L-1-7(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,071 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (let ((.cse1 (not (= |old(currentRoundingMode)| roundNearestTiesToEven))) (.cse4 (not (= |old(currentRoundingMode)| roundTowardNegative)))) (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven)) (.cse2 (= currentRoundingMode roundTowardNegative)) (.cse3 (let ((.cse5 (= ULTIMATE.setCurrentRoundingMode_i (_ bv1024 32)))) (and (or .cse5 .cse1) (or .cse5 .cse4))))) (and (or (= ULTIMATE.setCurrentRoundingMode_i (_ bv0 32)) .cse0 .cse1) (or .cse2 .cse3 .cse0) (or .cse4 .cse2 .cse3)))) [2023-11-26 12:00:35,071 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,071 INFO L899 garLoopResultBuilder]: For program point L1132(line 1132) no Hoare annotation was computed. [2023-11-26 12:00:35,071 INFO L895 garLoopResultBuilder]: At program point L1130(line 1130) the Hoare annotation is: (and (= currentRoundingMode roundTowardNegative) (exists ((v_subst_16 RoundingMode)) (and (fp.lt |ULTIMATE.start_main_~f4~0#1| ((_ to_fp 8 24) v_subst_16 (/ 12582913.0 140737488355328.0))) (fp.lt |ULTIMATE.start_main_~f3~0#1| ((_ to_fp 8 24) v_subst_16 (/ 8388609.0 8388608.0))) (fp.lt ((_ to_fp 8 24) v_subst_16 (/ 12582911.0 140737488355328.0)) |ULTIMATE.start_main_~f4~0#1|) (fp.lt ((_ to_fp 8 24) v_subst_16 (/ 16777215.0 16777216.0)) |ULTIMATE.start_main_~f3~0#1|))) (exists ((v_subst_9 RoundingMode)) (and (= |ULTIMATE.start_main_~f1~0#1| ((_ to_fp 8 24) v_subst_9 ((_ to_fp 11 53) v_subst_9 1.0))) (= |ULTIMATE.start_main_~f2~0#1| ((_ to_fp 8 24) v_subst_9 ((_ to_fp 11 53) v_subst_9 (/ 3.0 33554432.0))))))) [2023-11-26 12:00:35,071 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:00:35,072 INFO L895 garLoopResultBuilder]: At program point L1129(line 1129) the Hoare annotation is: (and (= currentRoundingMode roundTowardNegative) (exists ((v_subst_9 RoundingMode)) (and (= |ULTIMATE.start_main_~f1~0#1| ((_ to_fp 8 24) v_subst_9 ((_ to_fp 11 53) v_subst_9 1.0))) (= |ULTIMATE.start_main_~f2~0#1| ((_ to_fp 8 24) v_subst_9 ((_ to_fp 11 53) v_subst_9 (/ 3.0 33554432.0))))))) [2023-11-26 12:00:35,072 INFO L895 garLoopResultBuilder]: At program point L1129-1(line 1129) the Hoare annotation is: (and (fp.lt |ULTIMATE.start_main_~f3~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0))) (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 16777216.0)) |ULTIMATE.start_main_~f3~0#1|) (= currentRoundingMode roundTowardNegative) (exists ((v_subst_9 RoundingMode)) (and (= |ULTIMATE.start_main_~f1~0#1| ((_ to_fp 8 24) v_subst_9 ((_ to_fp 11 53) v_subst_9 1.0))) (= |ULTIMATE.start_main_~f2~0#1| ((_ to_fp 8 24) v_subst_9 ((_ to_fp 11 53) v_subst_9 (/ 3.0 33554432.0))))))) [2023-11-26 12:00:35,072 INFO L895 garLoopResultBuilder]: At program point L1123(line 1123) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_subst_2 RoundingMode)) (and (= |ULTIMATE.start_main_~f2~0#1| ((_ to_fp 8 24) v_subst_2 ((_ to_fp 11 53) v_subst_2 (/ 3.0 33554432.0)))) (= |ULTIMATE.start_main_~f1~0#1| ((_ to_fp 8 24) v_subst_2 ((_ to_fp 11 53) v_subst_2 1.0)))))) [2023-11-26 12:00:35,072 INFO L899 garLoopResultBuilder]: For program point L1123-1(line 1123) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point L3-2(lines 2 4) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 2 4) the Hoare annotation is: true [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 2 4) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point L1110(line 1110) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point L1110-1(line 1110) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point L1110-3(lines 1097 1113) no Hoare annotation was computed. [2023-11-26 12:00:35,073 INFO L899 garLoopResultBuilder]: For program point L1106(line 1106) no Hoare annotation was computed. [2023-11-26 12:00:35,074 INFO L899 garLoopResultBuilder]: For program point L1103(line 1103) no Hoare annotation was computed. [2023-11-26 12:00:35,074 INFO L899 garLoopResultBuilder]: For program point roundingTestEXIT(lines 1097 1113) no Hoare annotation was computed. [2023-11-26 12:00:35,074 INFO L899 garLoopResultBuilder]: For program point L1103-1(line 1103) no Hoare annotation was computed. [2023-11-26 12:00:35,074 INFO L895 garLoopResultBuilder]: At program point L1103-3(line 1103) the Hoare annotation is: (let ((.cse0 (exists ((v_subst_1 RoundingMode)) (= (fp.add currentRoundingMode ((_ to_fp 8 24) v_subst_1 ((_ to_fp 11 53) v_subst_1 1.0)) ((_ to_fp 8 24) v_subst_1 ((_ to_fp 11 53) v_subst_1 (/ 3.0 33554432.0)))) roundingTest_~roundToNearestSum~0))) (.cse1 (= currentRoundingMode roundNearestTiesToEven))) (and (or (not (= |old(currentRoundingMode)| roundTowardNegative)) (forall ((currentRoundingMode RoundingMode)) (or (not (fp.lt |roundingTest_#in~f2| ((_ to_fp 8 24) currentRoundingMode (/ 12582913.0 140737488355328.0)))) (not (fp.lt |roundingTest_#in~f1| ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0)))) (not (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 12582911.0 140737488355328.0)) |roundingTest_#in~f2|)) (not (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 16777216.0)) |roundingTest_#in~f1|)))) (and .cse0 (exists ((v_subst_10 RoundingMode)) (and (fp.lt roundingTest_~f2 ((_ to_fp 8 24) v_subst_10 (/ 12582913.0 140737488355328.0))) (fp.lt ((_ to_fp 8 24) v_subst_10 (/ 12582911.0 140737488355328.0)) roundingTest_~f2) (fp.lt ((_ to_fp 8 24) v_subst_10 (/ 16777215.0 16777216.0)) roundingTest_~f1) (fp.lt roundingTest_~f1 ((_ to_fp 8 24) v_subst_10 (/ 8388609.0 8388608.0))))) .cse1)) (or (and .cse0 (exists ((currentRoundingMode RoundingMode)) (and (= roundingTest_~f1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3.0 33554432.0))) roundingTest_~f2))) .cse1) (forall ((v_subst_3 RoundingMode)) (or (not (= |roundingTest_#in~f1| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 1.0)))) (not (= |roundingTest_#in~f2| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 (/ 3.0 33554432.0))))))) (not (= |old(currentRoundingMode)| roundNearestTiesToEven))))) [2023-11-26 12:00:35,077 INFO L895 garLoopResultBuilder]: At program point L1099(line 1099) the Hoare annotation is: (and (or (not (= |old(currentRoundingMode)| roundTowardNegative)) (forall ((currentRoundingMode RoundingMode)) (or (not (fp.lt |roundingTest_#in~f2| ((_ to_fp 8 24) currentRoundingMode (/ 12582913.0 140737488355328.0)))) (not (fp.lt |roundingTest_#in~f1| ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0)))) (not (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 12582911.0 140737488355328.0)) |roundingTest_#in~f2|)) (not (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 16777216.0)) |roundingTest_#in~f1|)))) (and (= currentRoundingMode roundTowardNegative) (exists ((v_subst_15 RoundingMode)) (and (fp.lt roundingTest_~f2 ((_ to_fp 8 24) v_subst_15 (/ 12582913.0 140737488355328.0))) (fp.lt ((_ to_fp 8 24) v_subst_15 (/ 16777215.0 16777216.0)) roundingTest_~f1) (fp.lt roundingTest_~f1 ((_ to_fp 8 24) v_subst_15 (/ 8388609.0 8388608.0))) (fp.lt ((_ to_fp 8 24) v_subst_15 (/ 12582911.0 140737488355328.0)) roundingTest_~f2))))) (or (and (exists ((currentRoundingMode RoundingMode)) (and (= roundingTest_~f1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3.0 33554432.0))) roundingTest_~f2))) (= currentRoundingMode roundNearestTiesToEven)) (forall ((v_subst_3 RoundingMode)) (or (not (= |roundingTest_#in~f1| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 1.0)))) (not (= |roundingTest_#in~f2| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 (/ 3.0 33554432.0))))))) (not (= |old(currentRoundingMode)| roundNearestTiesToEven)))) [2023-11-26 12:00:35,077 INFO L899 garLoopResultBuilder]: For program point L1099-1(line 1099) no Hoare annotation was computed. [2023-11-26 12:00:35,078 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 1097 1113) the Hoare annotation is: (and (or (not (= |old(currentRoundingMode)| roundTowardNegative)) (= currentRoundingMode roundTowardNegative) (forall ((currentRoundingMode RoundingMode)) (or (not (fp.lt |roundingTest_#in~f2| ((_ to_fp 8 24) currentRoundingMode (/ 12582913.0 140737488355328.0)))) (not (fp.lt |roundingTest_#in~f1| ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0)))) (not (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 12582911.0 140737488355328.0)) |roundingTest_#in~f2|)) (not (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 16777216.0)) |roundingTest_#in~f1|))))) (or (forall ((v_subst_3 RoundingMode)) (or (not (= |roundingTest_#in~f1| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 1.0)))) (not (= |roundingTest_#in~f2| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 (/ 3.0 33554432.0))))))) (= currentRoundingMode roundNearestTiesToEven) (not (= |old(currentRoundingMode)| roundNearestTiesToEven)))) [2023-11-26 12:00:35,078 INFO L899 garLoopResultBuilder]: For program point roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2023-11-26 12:00:35,078 INFO L899 garLoopResultBuilder]: For program point roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2023-11-26 12:00:35,081 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:35,083 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:35,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:35 BoogieIcfgContainer [2023-11-26 12:00:35,087 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:35,088 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:35,088 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:35,088 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:35,089 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:11" (3/4) ... [2023-11-26 12:00:35,090 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:00:35,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2023-11-26 12:00:35,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-26 12:00:35,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure roundingTest [2023-11-26 12:00:35,103 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-26 12:00:35,103 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-26 12:00:35,104 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-26 12:00:35,104 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 12:00:35,213 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:35,213 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:00:35,213 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:35,214 INFO L158 Benchmark]: Toolchain (without parser) took 25669.34ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 34.8MB in the end (delta: 51.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:35,215 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 81.8MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:35,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1219.10ms. Allocated memory is still 111.1MB. Free memory was 86.2MB in the beginning and 71.7MB in the end (delta: 14.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:35,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.52ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 69.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:35,216 INFO L158 Benchmark]: Boogie Preprocessor took 101.85ms. Allocated memory is still 111.1MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:35,217 INFO L158 Benchmark]: RCFGBuilder took 705.78ms. Allocated memory is still 111.1MB. Free memory was 67.2MB in the beginning and 54.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:35,217 INFO L158 Benchmark]: TraceAbstraction took 23416.79ms. Allocated memory is still 111.1MB. Free memory was 54.0MB in the beginning and 40.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:35,218 INFO L158 Benchmark]: Witness Printer took 125.48ms. Allocated memory is still 111.1MB. Free memory was 39.0MB in the beginning and 34.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:35,221 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 81.8MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1219.10ms. Allocated memory is still 111.1MB. Free memory was 86.2MB in the beginning and 71.7MB in the end (delta: 14.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.52ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 69.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 101.85ms. Allocated memory is still 111.1MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 705.78ms. Allocated memory is still 111.1MB. Free memory was 67.2MB in the beginning and 54.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23416.79ms. Allocated memory is still 111.1MB. Free memory was 54.0MB in the beginning and 40.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 125.48ms. Allocated memory is still 111.1MB. Free memory was 39.0MB in the beginning and 34.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 1095]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma STDC FENV_ACCESS OFF [1095] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1103]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 23.3s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 916 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 674 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 504 IncrementalHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 242 mSDtfsCounter, 504 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=2, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 32 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 53 PreInvPairs, 58 NumberOfFragments, 467 HoareAnnotationTreeSize, 53 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 644 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 177 ConstructedInterpolants, 26 QuantifiedInterpolants, 778 SizeOfPredicates, 32 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 69/69 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 12:00:35,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b42a8f3-4478-4f83-9be8-ad051c8b4e04/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE