./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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-cbmc-regression/float19.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 4d73edf9e70d6220eab5fbfa0799f819d52b18e0e5cf372f100f5a7defb0824d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:32:58,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:32:58,165 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 11:32:58,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:32:58,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:32:58,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:32:58,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:32:58,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:32:58,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:32:58,191 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:32:58,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:32:58,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:32:58,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:32:58,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:32:58,191 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:32:58,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:32:58,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:32:58,192 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:32:58,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:32:58,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:32:58,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:32:58,196 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:32:58,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:32:58,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 11:32:58,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 11:32:58,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:32:58,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:32:58,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:32:58,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:32:58,197 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 -> 4d73edf9e70d6220eab5fbfa0799f819d52b18e0e5cf372f100f5a7defb0824d [2025-03-03 11:32:58,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:32:58,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:32:58,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:32:58,408 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:32:58,408 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:32:58,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float19.i [2025-03-03 11:32:59,536 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af19f3817/a44558800a8b4c2fbf7915440961acea/FLAG7251c0ebf [2025-03-03 11:32:59,834 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:32:59,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float19.i [2025-03-03 11:32:59,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af19f3817/a44558800a8b4c2fbf7915440961acea/FLAG7251c0ebf [2025-03-03 11:33:00,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af19f3817/a44558800a8b4c2fbf7915440961acea [2025-03-03 11:33:00,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:33:00,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:33:00,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:33:00,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:33:00,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:33:00,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:33:00" (1/1) ... [2025-03-03 11:33:00,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3730fdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:00, skipping insertion in model container [2025-03-03 11:33:00,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:33:00" (1/1) ... [2025-03-03 11:33:00,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:33:00,373 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.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:1808) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:233) 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.visit(CHandler.java:1816) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:233) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-03-03 11:33:00,380 INFO L158 Benchmark]: Toolchain (without parser) took 273.90ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 92.1MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:33:00,380 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:33:00,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.25ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 92.1MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:33:00,381 INFO L338 ainManager$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 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.25ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 92.1MB in the end (delta: 14.0MB). 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-cbmc-regression/float19.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 4d73edf9e70d6220eab5fbfa0799f819d52b18e0e5cf372f100f5a7defb0824d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:33:01,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:33:02,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 11:33:02,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:33:02,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:33:02,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:33:02,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:33:02,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:33:02,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:33:02,064 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:33:02,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:33:02,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:33:02,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:33:02,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:33:02,065 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:33:02,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 11:33:02,066 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:33:02,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:33:02,067 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:33:02,067 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:33:02,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:33:02,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:33:02,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:33:02,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:33:02,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:33:02,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:33:02,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:33:02,069 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 -> 4d73edf9e70d6220eab5fbfa0799f819d52b18e0e5cf372f100f5a7defb0824d [2025-03-03 11:33:02,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:33:02,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:33:02,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:33:02,314 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:33:02,314 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:33:02,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float19.i [2025-03-03 11:33:03,485 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e371ca3ed/6c58a62ae7464508a486fd88844486f2/FLAG237b769d9 [2025-03-03 11:33:03,713 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:33:03,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float19.i [2025-03-03 11:33:03,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e371ca3ed/6c58a62ae7464508a486fd88844486f2/FLAG237b769d9 [2025-03-03 11:33:04,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e371ca3ed/6c58a62ae7464508a486fd88844486f2 [2025-03-03 11:33:04,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:33:04,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:33:04,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:33:04,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:33:04,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:33:04,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a37b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04, skipping insertion in model container [2025-03-03 11:33:04,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:33:04,307 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float19.i[40839,40852] [2025-03-03 11:33:04,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:33:04,319 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:33:04,350 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float19.i[40839,40852] [2025-03-03 11:33:04,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:33:04,443 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:33:04,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04 WrapperNode [2025-03-03 11:33:04,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:33:04,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:33:04,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:33:04,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:33:04,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,486 INFO L138 Inliner]: procedures = 449, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2025-03-03 11:33:04,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:33:04,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:33:04,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:33:04,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:33:04,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,501 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]. [2025-03-03 11:33:04,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,506 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:33:04,510 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:33:04,510 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:33:04,510 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:33:04,513 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (1/1) ... [2025-03-03 11:33:04,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:33:04,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:33:04,534 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) [2025-03-03 11:33:04,536 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 [2025-03-03 11:33:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 11:33:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:33:04,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:33:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:33:04,616 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:33:04,617 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:33:04,840 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-03 11:33:04,840 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:33:04,845 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:33:04,845 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:33:04,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:33:04 BoogieIcfgContainer [2025-03-03 11:33:04,846 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:33:04,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:33:04,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:33:04,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:33:04,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:33:04" (1/3) ... [2025-03-03 11:33:04,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c4988b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:33:04, skipping insertion in model container [2025-03-03 11:33:04,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:33:04" (2/3) ... [2025-03-03 11:33:04,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c4988b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:33:04, skipping insertion in model container [2025-03-03 11:33:04,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:33:04" (3/3) ... [2025-03-03 11:33:04,854 INFO L128 eAbstractionObserver]: Analyzing ICFG float19.i [2025-03-03 11:33:04,864 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:33:04,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float19.i that has 1 procedures, 10 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 11:33:04,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:33:04,902 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;@2c77573d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:33:04,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 11:33:04,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2025-03-03 11:33:04,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-03 11:33:04,908 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:33:04,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-03 11:33:04,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:33:04,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:33:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash 38139366, now seen corresponding path program 1 times [2025-03-03 11:33:04,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:33:04,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022203850] [2025-03-03 11:33:04,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:33:04,919 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 [2025-03-03 11:33:04,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:33:04,922 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) [2025-03-03 11:33:04,923 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 [2025-03-03 11:33:04,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-03 11:33:04,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-03 11:33:04,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:33:04,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:33:04,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 11:33:04,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:33:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:33:05,246 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:33:05,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:33:05,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022203850] [2025-03-03 11:33:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022203850] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:33:05,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:33:05,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 11:33:05,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434636024] [2025-03-03 11:33:05,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:33:05,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 11:33:05,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:33:05,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 11:33:05,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:33:05,266 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2025-03-03 11:33:05,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:33:05,552 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2025-03-03 11:33:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:33:05,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2025-03-03 11:33:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:33:05,556 INFO L225 Difference]: With dead ends: 14 [2025-03-03 11:33:05,556 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 11:33:05,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:33:05,559 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 11:33:05,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 11:33:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 11:33:05,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 11:33:05,570 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) [2025-03-03 11:33:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 11:33:05,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2025-03-03 11:33:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:33:05,572 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 11:33:05,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2025-03-03 11:33:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 11:33:05,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 11:33:05,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 11:33:05,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-03 11:33:05,777 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 [2025-03-03 11:33:05,780 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 11:33:05,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 11:33:05,784 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:33:05,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:33:05 BoogieIcfgContainer [2025-03-03 11:33:05,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:33:05,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:33:05,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:33:05,789 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:33:05,789 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:33:04" (3/4) ... [2025-03-03 11:33:05,791 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 11:33:05,795 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-03 11:33:05,795 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-03 11:33:05,795 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 11:33:05,795 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 11:33:05,846 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 11:33:05,846 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 11:33:05,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:33:05,847 INFO L158 Benchmark]: Toolchain (without parser) took 1808.33ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 33.3MB in the end (delta: 40.4MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2025-03-03 11:33:05,847 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 62.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:33:05,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.91ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 66.7MB in the end (delta: 7.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2025-03-03 11:33:05,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.62ms. Allocated memory is still 100.7MB. Free memory was 66.7MB in the beginning and 64.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:33:05,849 INFO L158 Benchmark]: Boogie Preprocessor took 22.25ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 63.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:33:05,849 INFO L158 Benchmark]: IcfgBuilder took 336.25ms. Allocated memory is still 100.7MB. Free memory was 63.0MB in the beginning and 54.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:33:05,849 INFO L158 Benchmark]: TraceAbstraction took 939.95ms. Allocated memory is still 100.7MB. Free memory was 53.5MB in the beginning and 37.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:33:05,850 INFO L158 Benchmark]: Witness Printer took 57.81ms. Allocated memory is still 100.7MB. Free memory was 37.6MB in the beginning and 33.3MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:33:05,851 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 62.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.91ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 66.7MB in the end (delta: 7.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.62ms. Allocated memory is still 100.7MB. Free memory was 66.7MB in the beginning and 64.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.25ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 63.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 336.25ms. Allocated memory is still 100.7MB. Free memory was 63.0MB in the beginning and 54.5MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 939.95ms. Allocated memory is still 100.7MB. Free memory was 53.5MB in the beginning and 37.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 57.81ms. Allocated memory is still 100.7MB. Free memory was 37.6MB in the beginning and 33.3MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 968]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 1 QuantifiedInterpolants, 11 SizeOfPredicates, 1 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2025-03-03 11:33:05,871 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