./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:23:20,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:23:20,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:23:20,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:23:20,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:23:20,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:23:20,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:23:20,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:23:20,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:23:20,352 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:23:20,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:23:20,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:23:20,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:23:20,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:23:20,354 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:23:20,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:23:20,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:23:20,355 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:23:20,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:23:20,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:23:20,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:23:20,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:23:20,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:23:20,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:23:20,359 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:23:20,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:23:20,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:23:20,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:23:20,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:23:20,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:23:20,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:23:20,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:23:20,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:20,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:23:20,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:23:20,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:23:20,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:23:20,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:23:20,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:23:20,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:23:20,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:23:20,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:23:20,365 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2024-11-18 11:23:20,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:23:20,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:23:20,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:23:20,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:23:20,684 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:23:20,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2024-11-18 11:23:22,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:23:22,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:23:22,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2024-11-18 11:23:22,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de67c326/dffc5f34fb3840afa0c36c87353f8303/FLAG393f511dd [2024-11-18 11:23:22,601 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de67c326/dffc5f34fb3840afa0c36c87353f8303 [2024-11-18 11:23:22,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:23:22,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:23:22,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:22,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:23:22,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:23:22,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:22" (1/1) ... [2024-11-18 11:23:22,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ace7cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:22, skipping insertion in model container [2024-11-18 11:23:22,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:22" (1/1) ... [2024-11-18 11:23:22,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:23:23,113 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:736) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1165) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1628) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3506) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2498) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:640) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-18 11:23:23,119 INFO L158 Benchmark]: Toolchain (without parser) took 512.06ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 98.4MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:23:23,121 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:23,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.03ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 98.4MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:23:23,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.03ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 98.4MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:736) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:23:25,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:23:25,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:23:25,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:23:25,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:23:25,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:23:25,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:23:25,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:23:25,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:23:25,770 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:23:25,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:23:25,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:23:25,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:23:25,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:23:25,775 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:23:25,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:23:25,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:23:25,776 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:23:25,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:23:25,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:23:25,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:23:25,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:23:25,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:23:25,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:23:25,778 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:23:25,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:23:25,779 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:23:25,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:23:25,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:23:25,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:23:25,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:23:25,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:23:25,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:23:25,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:23:25,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:25,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:23:25,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:23:25,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:23:25,783 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:23:25,783 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:23:25,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:23:25,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:23:25,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:23:25,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:23:25,784 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2024-11-18 11:23:26,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:23:26,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:23:26,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:23:26,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:23:26,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:23:26,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2024-11-18 11:23:27,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:23:28,163 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:23:28,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2024-11-18 11:23:28,182 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f358417/e9d44230487b42e78ea7300690882b60/FLAG54fe9b2c1 [2024-11-18 11:23:28,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f358417/e9d44230487b42e78ea7300690882b60 [2024-11-18 11:23:28,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:23:28,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:23:28,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:28,199 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:23:28,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:23:28,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:28" (1/1) ... [2024-11-18 11:23:28,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223b1dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:28, skipping insertion in model container [2024-11-18 11:23:28,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:28" (1/1) ... [2024-11-18 11:23:28,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:23:28,832 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2024-11-18 11:23:28,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2024-11-18 11:23:28,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:28,860 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:23:28,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma STDC FENV_ACCESS OFF [1095] [2024-11-18 11:23:28,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2024-11-18 11:23:28,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2024-11-18 11:23:28,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:29,055 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:23:29,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29 WrapperNode [2024-11-18 11:23:29,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:29,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:29,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:23:29,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:23:29,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,122 INFO L138 Inliner]: procedures = 461, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-18 11:23:29,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:29,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:23:29,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:23:29,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:23:29,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,135 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,146 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]. [2024-11-18 11:23:29,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:23:29,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:23:29,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:23:29,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:23:29,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (1/1) ... [2024-11-18 11:23:29,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:29,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:23:29,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:23:29,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:23:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:23:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure roundingTest [2024-11-18 11:23:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure roundingTest [2024-11-18 11:23:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:23:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:23:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:23:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 11:23:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 11:23:29,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-11-18 11:23:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-11-18 11:23:29,331 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:23:29,333 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:23:29,512 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-18 11:23:29,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:23:29,527 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:23:29,528 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 11:23:29,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:29 BoogieIcfgContainer [2024-11-18 11:23:29,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:23:29,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:23:29,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:23:29,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:23:29,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:28" (1/3) ... [2024-11-18 11:23:29,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd69342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:29, skipping insertion in model container [2024-11-18 11:23:29,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:29" (2/3) ... [2024-11-18 11:23:29,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd69342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:29, skipping insertion in model container [2024-11-18 11:23:29,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:29" (3/3) ... [2024-11-18 11:23:29,539 INFO L112 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2024-11-18 11:23:29,554 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:23:29,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 11:23:29,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:23:29,624 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@a9f6b15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:23:29,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 11:23:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 24 states have internal predecessors, (31), 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) [2024-11-18 11:23:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 11:23:29,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:29,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:29,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:29,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1145250574, now seen corresponding path program 1 times [2024-11-18 11:23:29,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:29,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635919243] [2024-11-18 11:23:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:29,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:29,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:29,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:29,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 11:23:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:29,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:23:29,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:23:29,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:29,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:29,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635919243] [2024-11-18 11:23:29,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635919243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:29,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:29,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:23:29,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147298427] [2024-11-18 11:23:29,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:29,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:23:29,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:29,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:23:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:29,824 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 24 states have internal predecessors, (31), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 11:23:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:29,872 INFO L93 Difference]: Finished difference Result 67 states and 89 transitions. [2024-11-18 11:23:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:23:29,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 11 [2024-11-18 11:23:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:29,881 INFO L225 Difference]: With dead ends: 67 [2024-11-18 11:23:29,881 INFO L226 Difference]: Without dead ends: 30 [2024-11-18 11:23:29,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:29,888 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:29,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:23:29,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-18 11:23:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-18 11:23:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.263157894736842) internal successors, (24), 21 states have internal predecessors, (24), 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) [2024-11-18 11:23:29,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-18 11:23:29,933 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 11 [2024-11-18 11:23:29,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:29,935 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-18 11:23:29,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 11:23:29,935 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-18 11:23:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-18 11:23:29,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:29,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:29,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 11:23:30,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:30,139 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:30,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash 184007803, now seen corresponding path program 1 times [2024-11-18 11:23:30,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:30,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871043626] [2024-11-18 11:23:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:30,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:30,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:30,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:30,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 11:23:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:30,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 11:23:30,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:23:30,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:30,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:30,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871043626] [2024-11-18 11:23:30,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871043626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:30,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:30,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 11:23:30,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434109981] [2024-11-18 11:23:30,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:30,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 11:23:30,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 11:23:30,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 11:23:30,646 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 11:23:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:31,646 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2024-11-18 11:23:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 11:23:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 12 [2024-11-18 11:23:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:31,649 INFO L225 Difference]: With dead ends: 81 [2024-11-18 11:23:31,650 INFO L226 Difference]: Without dead ends: 75 [2024-11-18 11:23:31,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:23:31,651 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 61 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:31,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 128 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 11:23:31,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-18 11:23:31,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-11-18 11:23:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 42 states have internal predecessors, (52), 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) [2024-11-18 11:23:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2024-11-18 11:23:31,675 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 12 [2024-11-18 11:23:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:31,676 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2024-11-18 11:23:31,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 11:23:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2024-11-18 11:23:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-18 11:23:31,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:31,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:31,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-18 11:23:31,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:31,878 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:31,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:31,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1415509715, now seen corresponding path program 1 times [2024-11-18 11:23:31,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:31,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409304108] [2024-11-18 11:23:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:31,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:31,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:31,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:31,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-18 11:23:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:31,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:23:31,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:23:31,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:31,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:31,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409304108] [2024-11-18 11:23:31,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409304108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:31,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:31,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:23:31,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869124921] [2024-11-18 11:23:31,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:31,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:23:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:31,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:23:31,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:31,946 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 11:23:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:31,972 INFO L93 Difference]: Finished difference Result 119 states and 161 transitions. [2024-11-18 11:23:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:23:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-18 11:23:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:31,975 INFO L225 Difference]: With dead ends: 119 [2024-11-18 11:23:31,975 INFO L226 Difference]: Without dead ends: 59 [2024-11-18 11:23:31,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:31,977 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:31,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:23:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-18 11:23:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-18 11:23:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 39 states have internal predecessors, (44), 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) [2024-11-18 11:23:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2024-11-18 11:23:31,988 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 13 [2024-11-18 11:23:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:31,988 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2024-11-18 11:23:31,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-18 11:23:31,988 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2024-11-18 11:23:31,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 11:23:31,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:31,989 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:31,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-18 11:23:32,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:32,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:32,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 332915595, now seen corresponding path program 1 times [2024-11-18 11:23:32,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:32,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406562687] [2024-11-18 11:23:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:32,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:32,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:32,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:32,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-18 11:23:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:32,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:23:32,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 11:23:32,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:32,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406562687] [2024-11-18 11:23:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406562687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:23:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33719214] [2024-11-18 11:23:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:32,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:23:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:23:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:32,273 INFO L87 Difference]: Start difference. First operand 59 states and 69 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) [2024-11-18 11:23:32,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:32,303 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2024-11-18 11:23:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:23:32,305 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 [2024-11-18 11:23:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:32,307 INFO L225 Difference]: With dead ends: 96 [2024-11-18 11:23:32,309 INFO L226 Difference]: Without dead ends: 59 [2024-11-18 11:23:32,310 INFO L431 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 [2024-11-18 11:23:32,311 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:32,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:23:32,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-18 11:23:32,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-18 11:23:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.131578947368421) internal successors, (43), 39 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) [2024-11-18 11:23:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2024-11-18 11:23:32,337 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 20 [2024-11-18 11:23:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:32,338 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2024-11-18 11:23:32,338 INFO L472 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) [2024-11-18 11:23:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2024-11-18 11:23:32,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-18 11:23:32,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:32,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:32,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-18 11:23:32,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:32,540 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:32,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:32,541 INFO L85 PathProgramCache]: Analyzing trace with hash -953275064, now seen corresponding path program 1 times [2024-11-18 11:23:32,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:32,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827433612] [2024-11-18 11:23:32,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:32,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:32,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:32,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:32,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-18 11:23:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:32,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 11:23:32,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 11:23:32,928 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:32,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:32,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827433612] [2024-11-18 11:23:32,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827433612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:32,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:32,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 11:23:32,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445815169] [2024-11-18 11:23:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:32,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 11:23:32,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:32,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 11:23:32,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 11:23:32,930 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-18 11:23:33,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:33,706 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2024-11-18 11:23:33,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 11:23:33,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 21 [2024-11-18 11:23:33,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:33,708 INFO L225 Difference]: With dead ends: 67 [2024-11-18 11:23:33,708 INFO L226 Difference]: Without dead ends: 65 [2024-11-18 11:23:33,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:23:33,709 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:33,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 162 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 11:23:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-18 11:23:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2024-11-18 11:23:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.105263157894737) internal successors, (42), 39 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) [2024-11-18 11:23:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2024-11-18 11:23:33,729 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 21 [2024-11-18 11:23:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:33,730 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2024-11-18 11:23:33,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-18 11:23:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2024-11-18 11:23:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-18 11:23:33,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:33,731 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:33,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-11-18 11:23:33,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:33,932 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:33,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:33,932 INFO L85 PathProgramCache]: Analyzing trace with hash -896016762, now seen corresponding path program 1 times [2024-11-18 11:23:33,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:33,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669398404] [2024-11-18 11:23:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:33,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:33,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:33,934 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:33,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-18 11:23:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:34,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:23:34,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 11:23:34,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:34,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:34,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669398404] [2024-11-18 11:23:34,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669398404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:34,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:34,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:23:34,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169085877] [2024-11-18 11:23:34,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:34,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:23:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:34,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:23:34,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:34,016 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-18 11:23:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:34,042 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2024-11-18 11:23:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:23:34,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 21 [2024-11-18 11:23:34,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:34,045 INFO L225 Difference]: With dead ends: 82 [2024-11-18 11:23:34,045 INFO L226 Difference]: Without dead ends: 43 [2024-11-18 11:23:34,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:23:34,047 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:34,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 53 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:23:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-18 11:23:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-11-18 11:23:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 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) [2024-11-18 11:23:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2024-11-18 11:23:34,053 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 21 [2024-11-18 11:23:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:34,054 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2024-11-18 11:23:34,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-18 11:23:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2024-11-18 11:23:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-18 11:23:34,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:34,055 INFO L215 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, 1] [2024-11-18 11:23:34,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-11-18 11:23:34,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:34,257 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:34,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash 809857432, now seen corresponding path program 1 times [2024-11-18 11:23:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:34,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892987164] [2024-11-18 11:23:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:34,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:34,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:34,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:34,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-18 11:23:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:34,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 11:23:34,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 11:23:35,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:35,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:35,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892987164] [2024-11-18 11:23:35,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892987164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:35,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:35,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 11:23:35,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406878532] [2024-11-18 11:23:35,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:35,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 11:23:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:35,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 11:23:35,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-18 11:23:35,647 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 11 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2024-11-18 11:23:37,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:37,624 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2024-11-18 11:23:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 11:23:37,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 43 [2024-11-18 11:23:37,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:37,626 INFO L225 Difference]: With dead ends: 43 [2024-11-18 11:23:37,626 INFO L226 Difference]: Without dead ends: 41 [2024-11-18 11:23:37,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-18 11:23:37,627 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:37,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 206 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 11:23:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-18 11:23:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2024-11-18 11:23:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 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) [2024-11-18 11:23:37,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2024-11-18 11:23:37,636 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 43 [2024-11-18 11:23:37,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:37,637 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2024-11-18 11:23:37,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2024-11-18 11:23:37,637 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2024-11-18 11:23:37,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-18 11:23:37,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:37,638 INFO L215 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, 1] [2024-11-18 11:23:37,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-18 11:23:37,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:37,840 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION === [roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION, roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:37,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash -506599221, now seen corresponding path program 1 times [2024-11-18 11:23:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:37,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287183177] [2024-11-18 11:23:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:37,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:37,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:37,842 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 11:23:37,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-18 11:23:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:23:37,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 11:23:37,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:23:39,070 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 11:23:39,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:23:39,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:23:39,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287183177] [2024-11-18 11:23:39,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287183177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:23:39,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:23:39,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 11:23:39,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599159298] [2024-11-18 11:23:39,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:23:39,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 11:23:39,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:23:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 11:23:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-18 11:23:39,072 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-18 11:23:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:23:40,926 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2024-11-18 11:23:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 11:23:40,926 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 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 52 [2024-11-18 11:23:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:23:40,927 INFO L225 Difference]: With dead ends: 41 [2024-11-18 11:23:40,927 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 11:23:40,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-18 11:23:40,928 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 15 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 11:23:40,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 186 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 11:23:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 11:23:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 11:23:40,930 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) [2024-11-18 11:23:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 11:23:40,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2024-11-18 11:23:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:23:40,930 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 11:23:40,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-18 11:23:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 11:23:40,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 11:23:40,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location roundingTestErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-18 11:23:40,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location roundingTestErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-18 11:23:40,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-18 11:23:41,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 11:23:41,137 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:23:41,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 11:23:43,072 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:23:43,083 WARN L156 FloydHoareUtils]: Requires clause for ULTIMATE.setCurrentRoundingMode contained old-variable. Original clause: (let ((.cse2 (= |old(currentRoundingMode)| roundTowardNegative)) (.cse0 (and (= currentRoundingMode roundTowardNegative) (not (= ULTIMATE.setCurrentRoundingMode_i (_ bv1024 32))))) (.cse1 (= currentRoundingMode roundNearestTiesToEven)) (.cse3 (= |old(currentRoundingMode)| roundNearestTiesToEven))) (and (or .cse0 .cse1) (or .cse2 .cse3) (or (not .cse2) .cse0) (or .cse1 (= ULTIMATE.setCurrentRoundingMode_i (_ bv0 32)) (not .cse3)))) Eliminated clause: (let ((.cse0 (and (= currentRoundingMode roundTowardNegative) (not (= ULTIMATE.setCurrentRoundingMode_i (_ bv1024 32))))) (.cse1 (= currentRoundingMode roundNearestTiesToEven))) (and (or .cse0 .cse1) (exists ((|old(currentRoundingMode)| RoundingMode)) (let ((.cse2 (= |old(currentRoundingMode)| roundTowardNegative)) (.cse3 (= |old(currentRoundingMode)| roundNearestTiesToEven))) (and (or .cse2 .cse3) (or (not .cse2) .cse0) (or .cse1 (= ULTIMATE.setCurrentRoundingMode_i (_ bv0 32)) (not .cse3))))))) [2024-11-18 11:23:43,102 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 11:23:43,103 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundTowardNegative [2024-11-18 11:23:43,105 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 11:23:43,105 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundTowardNegative [2024-11-18 11:23:43,108 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NAN [2024-11-18 11:23:43,108 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_INFINITE [2024-11-18 11:23:43,108 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_ZERO [2024-11-18 11:23:43,108 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_SUBNORMAL [2024-11-18 11:23:43,108 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NORMAL [2024-11-18 11:23:43,108 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IEEE_ [2024-11-18 11:23:43,109 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_SVID_ [2024-11-18 11:23:43,109 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_XOPEN_ [2024-11-18 11:23:43,109 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_POSIX_ [2024-11-18 11:23:43,109 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISOC_ [2024-11-18 11:23:43,109 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INVALID [2024-11-18 11:23:43,109 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__FE_DENORM [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_DIVBYZERO [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_OVERFLOW [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_UNDERFLOW [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INEXACT [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TONEAREST [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_DOWNWARD [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_UPWARD [2024-11-18 11:23:43,110 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TOWARDZERO [2024-11-18 11:23:43,117 WARN L156 FloydHoareUtils]: Requires clause for roundingTest contained old-variable. Original clause: (let ((.cse0 (= |old(currentRoundingMode)| roundNearestTiesToEven)) (.cse1 (= |old(currentRoundingMode)| roundTowardNegative))) (and (or (= currentRoundingMode roundNearestTiesToEven) (not .cse0)) (or (and (exists ((v_subst_3 RoundingMode)) (and (= |roundingTest_#in~f2| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 (/ 3.0 33554432.0)))) (= |roundingTest_#in~f1| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 1.0))))) .cse0) (and .cse1 (exists ((currentRoundingMode RoundingMode)) (and (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 12582911.0 140737488355328.0)) |roundingTest_#in~f2|) (fp.lt |roundingTest_#in~f2| ((_ to_fp 8 24) currentRoundingMode (/ 12582913.0 140737488355328.0))) (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 16777216.0)) |roundingTest_#in~f1|) (fp.lt |roundingTest_#in~f1| ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0))))))) (or (not .cse1) (= currentRoundingMode roundTowardNegative)))) Eliminated clause: (exists ((|old(currentRoundingMode)| RoundingMode)) (let ((.cse0 (= |old(currentRoundingMode)| roundNearestTiesToEven)) (.cse1 (= |old(currentRoundingMode)| roundTowardNegative))) (and (or (= currentRoundingMode roundNearestTiesToEven) (not .cse0)) (or (and (exists ((v_subst_3 RoundingMode)) (and (= |roundingTest_#in~f2| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 (/ 3.0 33554432.0)))) (= |roundingTest_#in~f1| ((_ to_fp 8 24) v_subst_3 ((_ to_fp 11 53) v_subst_3 1.0))))) .cse0) (and .cse1 (exists ((currentRoundingMode RoundingMode)) (and (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 12582911.0 140737488355328.0)) |roundingTest_#in~f2|) (fp.lt |roundingTest_#in~f2| ((_ to_fp 8 24) currentRoundingMode (/ 12582913.0 140737488355328.0))) (fp.lt ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 16777216.0)) |roundingTest_#in~f1|) (fp.lt |roundingTest_#in~f1| ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0))))))) (or (not .cse1) (= currentRoundingMode roundTowardNegative))))) [2024-11-18 11:23:43,126 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 11:23:43,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 11:23:43,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundTowardNegative [2024-11-18 11:23:43,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 11:23:43,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundTowardNegative [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 11:23:43,129 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NAN [2024-11-18 11:23:43,130 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_INFINITE [2024-11-18 11:23:43,130 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_ZERO [2024-11-18 11:23:43,130 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_SUBNORMAL [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NORMAL [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IEEE_ [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_SVID_ [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_XOPEN_ [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_POSIX_ [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISOC_ [2024-11-18 11:23:43,131 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INVALID [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__FE_DENORM [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_DIVBYZERO [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_OVERFLOW [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_UNDERFLOW [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INEXACT [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TONEAREST [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_DOWNWARD [2024-11-18 11:23:43,132 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_UPWARD [2024-11-18 11:23:43,133 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TOWARDZERO [2024-11-18 11:23:43,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:23:43 BoogieIcfgContainer [2024-11-18 11:23:43,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:23:43,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:23:43,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:23:43,136 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:23:43,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:29" (3/4) ... [2024-11-18 11:23:43,138 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 11:23:43,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2024-11-18 11:23:43,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-18 11:23:43,143 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure roundingTest [2024-11-18 11:23:43,147 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 11:23:43,148 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-18 11:23:43,148 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-18 11:23:43,148 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-18 11:23:43,229 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 11:23:43,230 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 11:23:43,230 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:23:43,230 INFO L158 Benchmark]: Toolchain (without parser) took 15033.23ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 45.6MB in the beginning and 71.4MB in the end (delta: -25.8MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,231 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:43,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 857.96ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 45.4MB in the beginning and 44.6MB in the end (delta: 802.1kB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.56ms. Allocated memory is still 98.6MB. Free memory was 44.6MB in the beginning and 75.2MB in the end (delta: -30.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,232 INFO L158 Benchmark]: Boogie Preprocessor took 38.98ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,232 INFO L158 Benchmark]: RCFGBuilder took 366.00ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 59.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,233 INFO L158 Benchmark]: TraceAbstraction took 13604.13ms. Allocated memory is still 98.6MB. Free memory was 59.1MB in the beginning and 27.5MB in the end (delta: 31.7MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,233 INFO L158 Benchmark]: Witness Printer took 94.61ms. Allocated memory is still 98.6MB. Free memory was 27.3MB in the beginning and 71.4MB in the end (delta: -44.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:23:43,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 857.96ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 45.4MB in the beginning and 44.6MB in the end (delta: 802.1kB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.56ms. Allocated memory is still 98.6MB. Free memory was 44.6MB in the beginning and 75.2MB in the end (delta: -30.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.98ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.00ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 59.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13604.13ms. Allocated memory is still 98.6MB. Free memory was 59.1MB in the beginning and 27.5MB in the end (delta: 31.7MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * Witness Printer took 94.61ms. Allocated memory is still 98.6MB. Free memory was 27.3MB in the beginning and 71.4MB in the end (delta: -44.1MB). 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] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NAN - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_INFINITE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_ZERO - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_SUBNORMAL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NORMAL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IEEE_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_SVID_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_XOPEN_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_POSIX_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISOC_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INVALID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__FE_DENORM - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_DIVBYZERO - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_OVERFLOW - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_UNDERFLOW - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INEXACT - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TONEAREST - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_DOWNWARD - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_UPWARD - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TOWARDZERO - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundTowardNegative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NAN - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_INFINITE - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_ZERO - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_SUBNORMAL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~FP_NORMAL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IEEE_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_SVID_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_XOPEN_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_POSIX_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISOC_ - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INVALID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__FE_DENORM - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_DIVBYZERO - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_OVERFLOW - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_UNDERFLOW - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~FE_INEXACT - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TONEAREST - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_DOWNWARD - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_UPWARD - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~FE_TOWARDZERO * 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, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 923 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 666 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 449 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 257 mSDtfsCounter, 449 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 149 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=2, InterpolantAutomatonStates: 54, 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, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 185 ConstructedInterpolants, 26 QuantifiedInterpolants, 786 SizeOfPredicates, 20 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 - ProcedureContractResult [Line: 2]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && ((signgam == \old(signgam)) && (_LIB_VERSION == \old(_LIB_VERSION)))) - ProcedureContractResult [Line: 1097]: Procedure Contract for roundingTest Derived contract for procedure roundingTest. Ensures: ((signgam == \old(signgam)) && (_LIB_VERSION == \old(_LIB_VERSION))) RESULT: Ultimate proved your program to be correct! [2024-11-18 11:23:43,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE