./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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-esbmc-regression/trunc_nondet_2.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 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:54:23,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:54:23,514 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 02:54:23,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:54:23,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:54:23,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:54:23,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:54:23,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:54:23,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:54:23,533 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:54:23,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:54:23,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:54:23,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:54:23,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:54:23,534 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:54:23,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:54:23,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:54:23,535 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc [2025-03-08 02:54:23,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:54:23,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:54:23,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:54:23,745 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:54:23,745 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:54:23,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2025-03-08 02:54:24,899 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71849275f/1e1504abe2da47fdaffc6a9db0bd67a0/FLAG1d2299161 [2025-03-08 02:54:25,212 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:54:25,213 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2025-03-08 02:54:25,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71849275f/1e1504abe2da47fdaffc6a9db0bd67a0/FLAG1d2299161 [2025-03-08 02:54:25,476 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71849275f/1e1504abe2da47fdaffc6a9db0bd67a0 [2025-03-08 02:54:25,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:54:25,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:54:25,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:54:25,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:54:25,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:54:25,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:54:25" (1/1) ... [2025-03-08 02:54:25,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659b9ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:25, skipping insertion in model container [2025-03-08 02:54:25,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:54:25" (1/1) ... [2025-03-08 02:54:25,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:54:25,849 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-esbmc-regression/trunc_nondet_2.i[38168,38181] [2025-03-08 02:54:25,856 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3127) 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:1658) 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:1248) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:280) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2628) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2628) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:180) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:666) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:541) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1663) 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:1548) 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:1195) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1178) 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:392) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1685) 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:3589) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2572) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:649) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-03-08 02:54:25,862 INFO L158 Benchmark]: Toolchain (without parser) took 383.20ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 89.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 02:54:25,862 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:54:25,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.78ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 89.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 02:54:25,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.78ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 89.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) 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/21.0.5-tem/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_1.6.800.v20240513-1750.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-esbmc-regression/trunc_nondet_2.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 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:54:27,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:54:27,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 02:54:27,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:54:27,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:54:27,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:54:27,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:54:27,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:54:27,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:54:27,552 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:54:27,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:54:27,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:54:27,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:54:27,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:54:27,554 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:54:27,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:54:27,554 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 6d32fef716001294d7d912ccc05f2e65cb12efff669d55080d4e7181fa8f42dc [2025-03-08 02:54:27,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:54:27,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:54:27,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:54:27,808 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:54:27,808 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:54:27,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2025-03-08 02:54:28,952 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08921c0b/7493440000e3435a9c63e9903062bcd8/FLAGc4d4235c9 [2025-03-08 02:54:29,189 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:54:29,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/trunc_nondet_2.i [2025-03-08 02:54:29,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08921c0b/7493440000e3435a9c63e9903062bcd8/FLAGc4d4235c9 [2025-03-08 02:54:29,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08921c0b/7493440000e3435a9c63e9903062bcd8 [2025-03-08 02:54:29,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:54:29,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:54:29,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:54:29,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:54:29,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:54:29,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a671b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29, skipping insertion in model container [2025-03-08 02:54:29,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:54:29,503 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-esbmc-regression/trunc_nondet_2.i[38168,38181] [2025-03-08 02:54:29,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:54:29,518 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:54:29,542 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-esbmc-regression/trunc_nondet_2.i[38168,38181] [2025-03-08 02:54:29,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:54:29,633 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:54:29,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29 WrapperNode [2025-03-08 02:54:29,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:54:29,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:54:29,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:54:29,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:54:29,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,681 INFO L138 Inliner]: procedures = 461, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2025-03-08 02:54:29,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:54:29,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:54:29,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:54:29,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:54:29,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,702 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]. [2025-03-08 02:54:29,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,705 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:54:29,712 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:54:29,713 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:54:29,713 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:54:29,713 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (1/1) ... [2025-03-08 02:54:29,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:54:29,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:54:29,738 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) [2025-03-08 02:54:29,741 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 [2025-03-08 02:54:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 02:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:54:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:54:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 02:54:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 02:54:29,844 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:54:29,846 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:54:30,165 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 02:54:30,166 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:54:30,171 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:54:30,171 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:54:30,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:54:30 BoogieIcfgContainer [2025-03-08 02:54:30,171 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:54:30,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:54:30,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:54:30,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:54:30,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:54:29" (1/3) ... [2025-03-08 02:54:30,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61404fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:54:30, skipping insertion in model container [2025-03-08 02:54:30,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:54:29" (2/3) ... [2025-03-08 02:54:30,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61404fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:54:30, skipping insertion in model container [2025-03-08 02:54:30,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:54:30" (3/3) ... [2025-03-08 02:54:30,181 INFO L128 eAbstractionObserver]: Analyzing ICFG trunc_nondet_2.i [2025-03-08 02:54:30,191 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:54:30,192 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG trunc_nondet_2.i that has 2 procedures, 17 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 02:54:30,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:54:30,237 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;@41195f9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:54:30,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:54:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 02:54:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-08 02:54:30,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:54:30,246 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 02:54:30,247 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:54:30,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:54:30,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1312976145, now seen corresponding path program 1 times [2025-03-08 02:54:30,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 02:54:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168358119] [2025-03-08 02:54:30,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:54:30,262 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 [2025-03-08 02:54:30,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 02:54:30,266 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) [2025-03-08 02:54:30,267 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 [2025-03-08 02:54:30,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-08 02:54:31,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-08 02:54:31,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:54:31,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:54:31,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-08 02:54:31,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:54:46,877 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 02:55:14,794 WARN L286 SmtUtils]: Spent 21.82s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-08 02:55:28,904 WARN L286 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 02:55:37,389 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~d~0#1_11| (_ FloatingPoint 11 53))) (and (fp.gt |v_ULTIMATE.start_main_~d~0#1_11| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775808 64))) (not (fp.eq (fp.roundToIntegral roundTowardZero |v_ULTIMATE.start_main_~d~0#1_11|) ((_ to_fp 11 53) roundNearestTiesToEven ((_ fp.to_sbv 64) roundTowardZero |v_ULTIMATE.start_main_~d~0#1_11|)))) (fp.lt |v_ULTIMATE.start_main_~d~0#1_11| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775807 64))))) is different from false [2025-03-08 02:55:41,409 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~d~0#1_11| (_ FloatingPoint 11 53))) (and (fp.gt |v_ULTIMATE.start_main_~d~0#1_11| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775808 64))) (not (fp.eq (fp.roundToIntegral roundTowardZero |v_ULTIMATE.start_main_~d~0#1_11|) ((_ to_fp 11 53) roundNearestTiesToEven ((_ fp.to_sbv 64) roundTowardZero |v_ULTIMATE.start_main_~d~0#1_11|)))) (fp.lt |v_ULTIMATE.start_main_~d~0#1_11| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv9223372036854775807 64))))) is different from true [2025-03-08 02:55:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-08 02:55:41,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:55:41,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 02:55:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168358119] [2025-03-08 02:55:41,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168358119] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:55:41,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:55:41,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 02:55:41,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311724738] [2025-03-08 02:55:41,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:55:41,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 02:55:41,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 02:55:41,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 02:55:41,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=49, Unknown=2, NotChecked=14, Total=90 [2025-03-08 02:55:41,433 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 02:55:42,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 02:56:08,209 WARN L286 SmtUtils]: Spent 22.67s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-08 02:56:12,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]