./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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/neural-networks/sqrt_2_safe.c-amalgamation.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 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 17:24:35,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 17:24:35,501 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 17:24:35,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 17:24:35,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 17:24:35,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 17:24:35,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 17:24:35,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 17:24:35,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 17:24:35,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 17:24:35,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 17:24:35,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 17:24:35,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 17:24:35,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 17:24:35,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 17:24:35,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 17:24:35,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 17:24:35,528 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 -> 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe [2025-03-16 17:24:35,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 17:24:35,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 17:24:35,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 17:24:35,903 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 17:24:35,903 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 17:24:35,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2025-03-16 17:24:37,008 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adafe35a5/2db0b505449841a88a9c43f329ebf136/FLAG65a4f5b1c [2025-03-16 17:24:37,306 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 17:24:37,307 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2025-03-16 17:24:37,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adafe35a5/2db0b505449841a88a9c43f329ebf136/FLAG65a4f5b1c [2025-03-16 17:24:37,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adafe35a5/2db0b505449841a88a9c43f329ebf136 [2025-03-16 17:24:37,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 17:24:37,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 17:24:37,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 17:24:37,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 17:24:37,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 17:24:37,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:24:37" (1/1) ... [2025-03-16 17:24:37,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cafca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:37, skipping insertion in model container [2025-03-16 17:24:37,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:24:37" (1/1) ... [2025-03-16 17:24:37,618 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 17:24:37,898 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: sqrt 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:1535) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:3266) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3110) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2345) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1265) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:215) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-03-16 17:24:37,902 INFO L158 Benchmark]: Toolchain (without parser) took 315.85ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 114.0MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 17:24:37,903 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 17:24:37,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.30ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 114.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 17:24:37,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.30ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 114.0MB in the end (delta: 14.5MB). 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: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: 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/neural-networks/sqrt_2_safe.c-amalgamation.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 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 17:24:39,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 17:24:39,657 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 17:24:39,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 17:24:39,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 17:24:39,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 17:24:39,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 17:24:39,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 17:24:39,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 17:24:39,686 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 17:24:39,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 17:24:39,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 17:24:39,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 17:24:39,687 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 17:24:39,687 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 17:24:39,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 17:24:39,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 17:24:39,688 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 -> 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe [2025-03-16 17:24:39,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 17:24:39,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 17:24:39,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 17:24:39,920 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 17:24:39,920 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 17:24:39,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2025-03-16 17:24:41,097 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7655da643/b819691e6cb54ed18ca9fad0e50ed767/FLAGec022e307 [2025-03-16 17:24:41,318 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 17:24:41,319 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2025-03-16 17:24:41,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7655da643/b819691e6cb54ed18ca9fad0e50ed767/FLAGec022e307 [2025-03-16 17:24:41,344 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7655da643/b819691e6cb54ed18ca9fad0e50ed767 [2025-03-16 17:24:41,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 17:24:41,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 17:24:41,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 17:24:41,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 17:24:41,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 17:24:41,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4185ae61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41, skipping insertion in model container [2025-03-16 17:24:41,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 17:24:41,718 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/neural-networks/sqrt_2_safe.c-amalgamation.i[63034,63047] [2025-03-16 17:24:41,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 17:24:41,728 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 17:24:41,758 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/neural-networks/sqrt_2_safe.c-amalgamation.i[63034,63047] [2025-03-16 17:24:41,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 17:24:41,900 INFO L204 MainTranslator]: Completed translation [2025-03-16 17:24:41,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41 WrapperNode [2025-03-16 17:24:41,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 17:24:41,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 17:24:41,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 17:24:41,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 17:24:41,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,951 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2025-03-16 17:24:41,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 17:24:41,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 17:24:41,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 17:24:41,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 17:24:41,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,973 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2025-03-16 17:24:41,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,982 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 17:24:41,992 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 17:24:41,992 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 17:24:41,992 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 17:24:41,993 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (1/1) ... [2025-03-16 17:24:41,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 17:24:42,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 17:24:42,021 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) [2025-03-16 17:24:42,025 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 [2025-03-16 17:24:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 17:24:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-16 17:24:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 17:24:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 17:24:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 17:24:42,122 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 17:24:42,123 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 17:24:46,254 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-16 17:24:46,254 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 17:24:46,262 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 17:24:46,263 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 17:24:46,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 05:24:46 BoogieIcfgContainer [2025-03-16 17:24:46,263 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 17:24:46,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 17:24:46,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 17:24:46,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 17:24:46,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 05:24:41" (1/3) ... [2025-03-16 17:24:46,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642067f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:24:46, skipping insertion in model container [2025-03-16 17:24:46,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:24:41" (2/3) ... [2025-03-16 17:24:46,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642067f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:24:46, skipping insertion in model container [2025-03-16 17:24:46,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 05:24:46" (3/3) ... [2025-03-16 17:24:46,272 INFO L128 eAbstractionObserver]: Analyzing ICFG sqrt_2_safe.c-amalgamation.i [2025-03-16 17:24:46,282 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 17:24:46,284 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sqrt_2_safe.c-amalgamation.i that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 17:24:46,319 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 17:24:46,328 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;@4fec70ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 17:24:46,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 17:24:46,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) [2025-03-16 17:24:46,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-16 17:24:46,333 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 17:24:46,334 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-16 17:24:46,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 17:24:46,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 17:24:46,337 INFO L85 PathProgramCache]: Analyzing trace with hash 36200965, now seen corresponding path program 1 times [2025-03-16 17:24:46,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 17:24:46,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859546509] [2025-03-16 17:24:46,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 17:24:46,344 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 [2025-03-16 17:24:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 17:24:46,346 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) [2025-03-16 17:24:46,347 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 [2025-03-16 17:24:46,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 17:24:46,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 17:24:46,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 17:24:46,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 17:24:46,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 17:24:46,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 17:24:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 17:24:46,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 17:24:46,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 17:24:46,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859546509] [2025-03-16 17:24:46,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859546509] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 17:24:46,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 17:24:46,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 17:24:46,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124782091] [2025-03-16 17:24:46,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 17:24:46,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 17:24:46,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 17:24:46,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 17:24:46,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 17:24:46,473 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-03-16 17:24:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 17:24:46,480 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2025-03-16 17:24:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 17:24:46,482 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2025-03-16 17:24:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 17:24:46,485 INFO L225 Difference]: With dead ends: 16 [2025-03-16 17:24:46,486 INFO L226 Difference]: Without dead ends: 6 [2025-03-16 17:24:46,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 17:24:46,490 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 17:24:46,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 17:24:46,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2025-03-16 17:24:46,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2025-03-16 17:24:46,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2025-03-16 17:24:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2025-03-16 17:24:46,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2025-03-16 17:24:46,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 17:24:46,511 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2025-03-16 17:24:46,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-03-16 17:24:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2025-03-16 17:24:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-16 17:24:46,511 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 17:24:46,512 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-16 17:24:46,521 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 (2)] Forceful destruction successful, exit code 0 [2025-03-16 17:24:46,712 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 [2025-03-16 17:24:46,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 17:24:46,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 17:24:46,714 INFO L85 PathProgramCache]: Analyzing trace with hash 36230756, now seen corresponding path program 1 times [2025-03-16 17:24:46,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 17:24:46,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095172947] [2025-03-16 17:24:46,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 17:24:46,714 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 [2025-03-16 17:24:46,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 17:24:46,716 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) [2025-03-16 17:24:46,717 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 [2025-03-16 17:24:46,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 17:24:53,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 17:24:53,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 17:24:53,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 17:24:53,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-16 17:24:53,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 17:25:02,253 WARN L286 SmtUtils]: Spent 8.14s 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) [2025-03-16 17:25:10,406 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-16 17:25:17,253 WARN L286 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-16 17:25:21,302 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)) (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)) |c_ULTIMATE.start_main_~z~0#1|) (= (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) |c_ULTIMATE.start_main_~y~0#1|))) is different from false [2025-03-16 17:25:25,338 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)) (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)) |c_ULTIMATE.start_main_~z~0#1|) (= (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) |c_ULTIMATE.start_main_~y~0#1|))) is different from true [2025-03-16 17:25:37,484 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-16 17:25:45,646 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-16 17:25:49,688 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)))) (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)))) is different from false [2025-03-16 17:25:53,725 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)))) (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)))) is different from true [2025-03-16 17:25:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 17:25:53,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 17:25:53,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 17:25:53,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095172947] [2025-03-16 17:25:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095172947] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 17:25:53,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 17:25:53,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 17:25:53,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66289884] [2025-03-16 17:25:53,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 17:25:53,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 17:25:53,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 17:25:53,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 17:25:53,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=6, Unknown=4, NotChecked=10, Total=30 [2025-03-16 17:25:53,727 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2025-03-16 17:25:57,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 17:26:01,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 17:26:05,943 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)) (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)) |c_ULTIMATE.start_main_~z~0#1|) (= (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) |c_ULTIMATE.start_main_~y~0#1|))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2025-03-16 17:26:05,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 17:26:05,953 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2025-03-16 17:26:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 17:26:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) Word has length 5 [2025-03-16 17:26:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 17:26:05,953 INFO L225 Difference]: With dead ends: 6 [2025-03-16 17:26:05,953 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 17:26:05,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=12, Invalid=7, Unknown=5, NotChecked=18, Total=42 [2025-03-16 17:26:05,954 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2025-03-16 17:26:05,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 2 Unknown, 9 Unchecked, 8.1s Time] [2025-03-16 17:26:05,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 17:26:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 17:26:05,955 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) [2025-03-16 17:26:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 17:26:05,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2025-03-16 17:26:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 17:26:05,955 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 17:26:05,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2025-03-16 17:26:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 17:26:05,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 17:26:05,957 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 17:26:05,965 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 (3)] Ended with exit code 0 [2025-03-16 17:26:06,158 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 [2025-03-16 17:26:06,160 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-16 17:26:06,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 17:26:06,164 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 17:26:06,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 05:26:06 BoogieIcfgContainer [2025-03-16 17:26:06,168 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 17:26:06,168 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 17:26:06,169 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 17:26:06,169 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 17:26:06,169 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 05:24:46" (3/4) ... [2025-03-16 17:26:06,170 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 17:26:06,175 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-16 17:26:06,175 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-16 17:26:06,175 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-16 17:26:06,175 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 17:26:06,175 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 17:26:06,218 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 17:26:06,218 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 17:26:06,218 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 17:26:06,219 INFO L158 Benchmark]: Toolchain (without parser) took 84871.79ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 76.5MB in the end (delta: 12.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2025-03-16 17:26:06,219 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 17:26:06,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.47ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 80.5MB in the end (delta: 8.1MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2025-03-16 17:26:06,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.62ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 77.9MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 17:26:06,219 INFO L158 Benchmark]: Boogie Preprocessor took 38.40ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 17:26:06,220 INFO L158 Benchmark]: IcfgBuilder took 4271.28ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 65.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 17:26:06,220 INFO L158 Benchmark]: TraceAbstraction took 79903.09ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 81.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 17:26:06,220 INFO L158 Benchmark]: Witness Printer took 49.63ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 76.5MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 17:26:06,221 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.47ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 80.5MB in the end (delta: 8.1MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.62ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 77.9MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.40ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 4271.28ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 65.4MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 79903.09ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 81.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.63ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 76.5MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 851]: 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 1 procedures, 9 locations, 10 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 79.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 9 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 7.3s SatisfiabilityAnalysisTime, 59.8s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 58 SizeOfPredicates, 1 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-16 17:26:06,331 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