./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d5ad1d4b660ffe702e76ae59116426cfe9b3ec53a7fd049efdd15c1eaac1611 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 03:48:53,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 03:48:53,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 03:48:53,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 03:48:53,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 03:48:53,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 03:48:53,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 03:48:53,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 03:48:53,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 03:48:53,304 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 03:48:53,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 03:48:53,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 03:48:53,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 03:48:53,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 03:48:53,305 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 03:48:53,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 03:48:53,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 03:48:53,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 03:48:53,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 03:48:53,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 03:48:53,306 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 03:48:53,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:48:53,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:48:53,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:48:53,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 03:48:53,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 03:48:53,309 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-jdk21/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5ad1d4b660ffe702e76ae59116426cfe9b3ec53a7fd049efdd15c1eaac1611 [2025-01-10 03:48:53,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 03:48:53,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 03:48:53,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 03:48:53,565 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 03:48:53,565 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 03:48:53,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i [2025-01-10 03:48:54,816 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/692478463/0d446ea5a6d54a0a94c6ab1af8b997fe/FLAGf26e7b26b [2025-01-10 03:48:55,259 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 03:48:55,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i [2025-01-10 03:48:55,293 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/692478463/0d446ea5a6d54a0a94c6ab1af8b997fe/FLAGf26e7b26b [2025-01-10 03:48:55,388 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/692478463/0d446ea5a6d54a0a94c6ab1af8b997fe [2025-01-10 03:48:55,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 03:48:55,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 03:48:55,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 03:48:55,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 03:48:55,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 03:48:55,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:48:55" (1/1) ... [2025-01-10 03:48:55,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa0229f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:48:55, skipping insertion in model container [2025-01-10 03:48:55,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:48:55" (1/1) ... [2025-01-10 03:48:55,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 03:48:56,337 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:1056) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:283) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:791) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:791) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) 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:1839) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-10 03:48:56,345 INFO L158 Benchmark]: Toolchain (without parser) took 949.67ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 103.5MB in the end (delta: 23.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 03:48:56,345 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 226.5MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:48:56,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 947.53ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 103.5MB in the end (delta: 23.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 03:48:56,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 226.5MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 947.53ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 103.5MB in the end (delta: 23.6MB). 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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d5ad1d4b660ffe702e76ae59116426cfe9b3ec53a7fd049efdd15c1eaac1611 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 03:48:58,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 03:48:58,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-01-10 03:48:58,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 03:48:58,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 03:48:58,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-01-10 03:48:58,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 03:48:58,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 03:48:58,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 03:48:58,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 03:48:58,491 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 03:48:58,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 03:48:58,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 03:48:58,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 03:48:58,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 03:48:58,492 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 03:48:58,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 03:48:58,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 03:48:58,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 03:48:58,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 03:48:58,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 03:48:58,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 03:48:58,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:48:58,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:48:58,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:48:58,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 03:48:58,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 03:48:58,495 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-jdk21/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5ad1d4b660ffe702e76ae59116426cfe9b3ec53a7fd049efdd15c1eaac1611 [2025-01-10 03:48:58,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 03:48:58,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 03:48:58,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 03:48:58,762 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 03:48:58,762 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 03:48:58,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i [2025-01-10 03:49:00,021 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c6f406a7c/e6870a727a2245aeb77c02db0fd31d64/FLAG8c5aa8803 [2025-01-10 03:49:00,341 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 03:49:00,341 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_13_good.i [2025-01-10 03:49:00,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c6f406a7c/e6870a727a2245aeb77c02db0fd31d64/FLAG8c5aa8803 [2025-01-10 03:49:00,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c6f406a7c/e6870a727a2245aeb77c02db0fd31d64 [2025-01-10 03:49:00,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 03:49:00,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 03:49:00,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 03:49:00,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 03:49:00,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 03:49:00,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:49:00" (1/1) ... [2025-01-10 03:49:00,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247482af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:00, skipping insertion in model container [2025-01-10 03:49:00,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:49:00" (1/1) ... [2025-01-10 03:49:00,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 03:49:01,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:49:01,332 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 03:49:01,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:49:01,634 INFO L204 MainTranslator]: Completed translation [2025-01-10 03:49:01,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01 WrapperNode [2025-01-10 03:49:01,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 03:49:01,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 03:49:01,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 03:49:01,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 03:49:01,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,691 INFO L138 Inliner]: procedures = 945, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 135 [2025-01-10 03:49:01,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 03:49:01,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 03:49:01,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 03:49:01,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 03:49:01,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,726 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 0 writes are split as follows [0, 0]. [2025-01-10 03:49:01,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,737 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 03:49:01,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 03:49:01,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 03:49:01,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 03:49:01,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (1/1) ... [2025-01-10 03:49:01,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:49:01,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:49:01,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 03:49:01,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 03:49:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2025-01-10 03:49:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2025-01-10 03:49:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 03:49:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 03:49:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 03:49:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-01-10 03:49:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-01-10 03:49:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 03:49:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 03:49:01,960 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 03:49:01,962 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 03:49:08,535 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2025-01-10 03:49:08,538 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 03:49:08,550 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 03:49:08,550 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 03:49:08,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:49:08 BoogieIcfgContainer [2025-01-10 03:49:08,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 03:49:08,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 03:49:08,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 03:49:08,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 03:49:08,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:49:00" (1/3) ... [2025-01-10 03:49:08,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17056dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:49:08, skipping insertion in model container [2025-01-10 03:49:08,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:01" (2/3) ... [2025-01-10 03:49:08,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17056dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:49:08, skipping insertion in model container [2025-01-10 03:49:08,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:49:08" (3/3) ... [2025-01-10 03:49:08,559 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_13_good.i [2025-01-10 03:49:08,569 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 03:49:08,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_13_good.i that has 3 procedures, 71 locations, 1 initial locations, 0 loop locations, and 10 error locations. [2025-01-10 03:49:08,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 03:49:08,618 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;@5673ab1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 03:49:08,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-01-10 03:49:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 62 states have internal predecessors, (71), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2025-01-10 03:49:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 03:49:08,626 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:49:08,628 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:49:08,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-01-10 03:49:08,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:49:08,633 INFO L85 PathProgramCache]: Analyzing trace with hash 933868346, now seen corresponding path program 1 times [2025-01-10 03:49:08,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:49:08,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910223908] [2025-01-10 03:49:08,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:49:08,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:49:08,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:49:08,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 03:49:08,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 03:49:08,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:49:08,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:49:08,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:49:08,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:49:08,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 03:49:08,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 03:49:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:49:08,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 03:49:08,792 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 03:49:08,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910223908] [2025-01-10 03:49:08,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910223908] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:49:08,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:49:08,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 03:49:08,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392765527] [2025-01-10 03:49:08,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:49:08,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 03:49:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 03:49:08,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 03:49:08,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 03:49:08,816 INFO L87 Difference]: Start difference. First operand has 71 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 62 states have internal predecessors, (71), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:49:08,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:49:08,881 INFO L93 Difference]: Finished difference Result 132 states and 174 transitions. [2025-01-10 03:49:08,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 03:49:08,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-01-10 03:49:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:49:08,887 INFO L225 Difference]: With dead ends: 132 [2025-01-10 03:49:08,888 INFO L226 Difference]: Without dead ends: 60 [2025-01-10 03:49:08,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 03:49:08,896 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 03:49:08,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 75 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 03:49:08,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-01-10 03:49:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-01-10 03:49:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.4) internal successors, (56), 53 states have internal predecessors, (56), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 03:49:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2025-01-10 03:49:08,922 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 12 [2025-01-10 03:49:08,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:49:08,923 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2025-01-10 03:49:08,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:49:08,923 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2025-01-10 03:49:08,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 03:49:08,924 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:49:08,924 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:49:08,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 03:49:09,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:49:09,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-01-10 03:49:09,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:49:09,129 INFO L85 PathProgramCache]: Analyzing trace with hash -500265313, now seen corresponding path program 1 times [2025-01-10 03:49:09,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:49:09,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71467592] [2025-01-10 03:49:09,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:49:09,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:49:09,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:49:09,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 03:49:09,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 03:49:09,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 03:49:09,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 03:49:09,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:49:09,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:49:09,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 03:49:09,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 03:49:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:49:09,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 03:49:09,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 03:49:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71467592] [2025-01-10 03:49:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71467592] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:49:09,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:49:09,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 03:49:09,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689715970] [2025-01-10 03:49:09,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:49:09,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 03:49:09,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 03:49:09,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 03:49:09,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 03:49:09,273 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:49:13,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-10 03:49:17,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-10 03:49:21,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-10 03:49:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:49:22,189 INFO L93 Difference]: Finished difference Result 114 states and 137 transitions. [2025-01-10 03:49:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 03:49:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2025-01-10 03:49:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:49:22,191 INFO L225 Difference]: With dead ends: 114 [2025-01-10 03:49:22,191 INFO L226 Difference]: Without dead ends: 65 [2025-01-10 03:49:22,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 03:49:22,192 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 9 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2025-01-10 03:49:22,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 181 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2025-01-10 03:49:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2025-01-10 03:49:22,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2025-01-10 03:49:22,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 54 states have internal predecessors, (58), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 03:49:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2025-01-10 03:49:22,201 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 14 [2025-01-10 03:49:22,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:49:22,201 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2025-01-10 03:49:22,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:49:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2025-01-10 03:49:22,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-10 03:49:22,203 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:49:22,203 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:49:22,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 03:49:22,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:49:22,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-01-10 03:49:22,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:49:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1671648588, now seen corresponding path program 1 times [2025-01-10 03:49:22,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:49:22,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800406267] [2025-01-10 03:49:22,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:49:22,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:49:22,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:49:22,410 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 03:49:22,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 03:49:22,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 03:49:22,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 03:49:22,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:49:22,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:49:22,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 03:49:22,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 03:49:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:49:22,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 03:49:22,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 03:49:22,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800406267] [2025-01-10 03:49:22,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800406267] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:49:22,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:49:22,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 03:49:22,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930521397] [2025-01-10 03:49:22,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:49:22,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 03:49:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 03:49:22,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 03:49:22,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 03:49:22,535 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:49:22,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:49:22,559 INFO L93 Difference]: Finished difference Result 109 states and 128 transitions. [2025-01-10 03:49:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 03:49:22,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-01-10 03:49:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:49:22,562 INFO L225 Difference]: With dead ends: 109 [2025-01-10 03:49:22,563 INFO L226 Difference]: Without dead ends: 63 [2025-01-10 03:49:22,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 03:49:22,564 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 03:49:22,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 03:49:22,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2025-01-10 03:49:22,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2025-01-10 03:49:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 55 states have internal predecessors, (59), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 03:49:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2025-01-10 03:49:22,576 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 15 [2025-01-10 03:49:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:49:22,576 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2025-01-10 03:49:22,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:49:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2025-01-10 03:49:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-10 03:49:22,578 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:49:22,578 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:49:22,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 03:49:22,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:49:22,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-01-10 03:49:22,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:49:22,783 INFO L85 PathProgramCache]: Analyzing trace with hash 281373761, now seen corresponding path program 1 times [2025-01-10 03:49:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:49:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991029142] [2025-01-10 03:49:22,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:49:22,784 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 [2025-01-10 03:49:22,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-10 03:49:22,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/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) [2025-01-10 03:49:22,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-01-10 03:49:22,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 03:50:05,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 03:50:05,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:50:05,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:50:05,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 03:50:05,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 03:50:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:50:05,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 03:50:05,881 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 03:50:05,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991029142] [2025-01-10 03:50:05,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991029142] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:50:05,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:50:05,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 03:50:05,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531474059] [2025-01-10 03:50:05,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:50:05,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 03:50:05,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 03:50:05,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 03:50:05,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-10 03:50:05,882 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:50:10,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-10 03:50:14,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-10 03:50:18,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-10 03:50:22,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-10 03:50:26,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-10 03:50:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:50:26,271 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2025-01-10 03:50:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 03:50:26,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-01-10 03:50:26,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:50:26,272 INFO L225 Difference]: With dead ends: 108 [2025-01-10 03:50:26,273 INFO L226 Difference]: Without dead ends: 66 [2025-01-10 03:50:26,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-10 03:50:26,273 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2025-01-10 03:50:26,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 184 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 5 Unknown, 0 Unchecked, 20.3s Time] [2025-01-10 03:50:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-01-10 03:50:26,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2025-01-10 03:50:26,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 56 states have internal predecessors, (60), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 03:50:26,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2025-01-10 03:50:26,278 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 16 [2025-01-10 03:50:26,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:50:26,278 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2025-01-10 03:50:26,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 03:50:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2025-01-10 03:50:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-10 03:50:26,279 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:50:26,279 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:50:26,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-01-10 03:50:26,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/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 [2025-01-10 03:50:26,483 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-01-10 03:50:26,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:50:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash 132652078, now seen corresponding path program 1 times [2025-01-10 03:50:26,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:50:26,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229246622] [2025-01-10 03:50:26,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:50:26,484 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 [2025-01-10 03:50:26,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-10 03:50:26,486 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/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) [2025-01-10 03:50:26,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-01-10 03:50:26,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes.