./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f46a7923f3a8b9cf16215c4b50a3d95784a7abff33a0908c32d2e017fb37334 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:53:40,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:53:40,359 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 16:53:40,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:53:40,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:53:40,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:53:40,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:53:40,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:53:40,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:53:40,388 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:53:40,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:53:40,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:53:40,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:53:40,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:53:40,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:53:40,390 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:53:40,391 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:53:40,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:53:40,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:53:40,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:53:40,392 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 ! 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 -> 6f46a7923f3a8b9cf16215c4b50a3d95784a7abff33a0908c32d2e017fb37334 [2025-03-17 16:53:40,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:53:40,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:53:40,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:53:40,725 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:53:40,726 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:53:40,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i [2025-03-17 16:53:41,846 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb4c3184/d43d1bdee41343799c545d74694920ac/FLAGceb843ae9 [2025-03-17 16:53:42,241 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:53:42,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i [2025-03-17 16:53:42,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb4c3184/d43d1bdee41343799c545d74694920ac/FLAGceb843ae9 [2025-03-17 16:53:42,422 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb4c3184/d43d1bdee41343799c545d74694920ac [2025-03-17 16:53:42,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:53:42,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:53:42,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:53:42,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:53:42,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:53:42,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:53:42" (1/1) ... [2025-03-17 16:53:42,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791212dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:42, skipping insertion in model container [2025-03-17 16:53:42,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:53:42" (1/1) ... [2025-03-17 16:53:42,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:53:43,314 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-03-17 16:53:43,318 INFO L158 Benchmark]: Toolchain (without parser) took 892.46ms. Allocated memory is still 201.3MB. Free memory was 150.6MB in the beginning and 126.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 16:53:43,318 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:53:43,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 891.01ms. Allocated memory is still 201.3MB. Free memory was 150.6MB in the beginning and 126.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 16:53:43,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 891.01ms. Allocated memory is still 201.3MB. Free memory was 150.6MB in the beginning and 126.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f46a7923f3a8b9cf16215c4b50a3d95784a7abff33a0908c32d2e017fb37334 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:53:44,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:53:44,983 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-17 16:53:44,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:53:44,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:53:44,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-17 16:53:45,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:53:45,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:53:45,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:53:45,005 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:53:45,005 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:53:45,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:53:45,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:53:45,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:53:45,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:53:45,006 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:53:45,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:53:45,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:53:45,007 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:53:45,008 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:53:45,008 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:53:45,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:53:45,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:53:45,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:53:45,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:53:45,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:53:45,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:53:45,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:53:45,009 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 ! 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 -> 6f46a7923f3a8b9cf16215c4b50a3d95784a7abff33a0908c32d2e017fb37334 [2025-03-17 16:53:45,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:53:45,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:53:45,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:53:45,242 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:53:45,243 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:53:45,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i [2025-03-17 16:53:46,410 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d283e262/5dd2fb1ca84c41a2947dcb5366b20a4f/FLAG858b2ea69 [2025-03-17 16:53:46,696 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:53:46,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_08_good.i [2025-03-17 16:53:46,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d283e262/5dd2fb1ca84c41a2947dcb5366b20a4f/FLAG858b2ea69 [2025-03-17 16:53:46,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d283e262/5dd2fb1ca84c41a2947dcb5366b20a4f [2025-03-17 16:53:46,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:53:46,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:53:46,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:53:46,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:53:46,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:53:46,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:53:46" (1/1) ... [2025-03-17 16:53:46,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1f2d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:46, skipping insertion in model container [2025-03-17 16:53:46,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:53:46" (1/1) ... [2025-03-17 16:53:47,034 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:53:47,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:53:47,804 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:53:47,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:53:48,122 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:53:48,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48 WrapperNode [2025-03-17 16:53:48,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:53:48,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:53:48,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:53:48,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:53:48,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,170 INFO L138 Inliner]: procedures = 947, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 159 [2025-03-17 16:53:48,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:53:48,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:53:48,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:53:48,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:53:48,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,198 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]. [2025-03-17 16:53:48,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,211 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:53:48,224 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:53:48,224 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:53:48,224 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:53:48,225 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (1/1) ... [2025-03-17 16:53:48,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:53:48,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:53:48,258 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) [2025-03-17 16:53:48,260 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 [2025-03-17 16:53:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2025-03-17 16:53:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2025-03-17 16:53:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:53:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:53:48,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:53:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2025-03-17 16:53:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2025-03-17 16:53:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:53:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:53:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 16:53:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 16:53:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2025-03-17 16:53:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2025-03-17 16:53:48,409 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:53:48,411 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:53:52,505 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2025-03-17 16:53:52,505 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:53:52,516 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:53:52,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:53:52,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:53:52 BoogieIcfgContainer [2025-03-17 16:53:52,518 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:53:52,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:53:52,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:53:52,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:53:52,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:53:46" (1/3) ... [2025-03-17 16:53:52,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0eedbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:53:52, skipping insertion in model container [2025-03-17 16:53:52,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:53:48" (2/3) ... [2025-03-17 16:53:52,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0eedbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:53:52, skipping insertion in model container [2025-03-17 16:53:52,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:53:52" (3/3) ... [2025-03-17 16:53:52,526 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_08_good.i [2025-03-17 16:53:52,535 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:53:52,536 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_08_good.i that has 5 procedures, 82 locations, 1 initial locations, 0 loop locations, and 10 error locations. [2025-03-17 16:53:52,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:53:52,583 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;@343e4785, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:53:52,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-17 16:53:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 63 states have internal predecessors, (72), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 16:53:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-17 16:53:52,590 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:53:52,590 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:53:52,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 16:53:52,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:53:52,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1245481285, now seen corresponding path program 1 times [2025-03-17 16:53:52,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:53:52,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110119045] [2025-03-17 16:53:52,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:53:52,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:53:52,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:53:52,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 16:53:52,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 16:53:52,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 16:53:52,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 16:53:52,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:53:52,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:53:52,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 16:53:52,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:53:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:53:52,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:53:52,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:53:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110119045] [2025-03-17 16:53:52,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110119045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:53:52,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:53:52,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:53:52,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134475043] [2025-03-17 16:53:52,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:53:52,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 16:53:52,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:53:52,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 16:53:52,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:53:52,769 INFO L87 Difference]: Start difference. First operand has 82 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 63 states have internal predecessors, (72), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 16:53:56,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 16:54:00,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 16:54:04,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 16:54:06,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 16:54:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:54:06,277 INFO L93 Difference]: Finished difference Result 158 states and 215 transitions. [2025-03-17 16:54:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 16:54:06,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2025-03-17 16:54:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:54:06,285 INFO L225 Difference]: With dead ends: 158 [2025-03-17 16:54:06,286 INFO L226 Difference]: Without dead ends: 82 [2025-03-17 16:54:06,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 16:54:06,289 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 11 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2025-03-17 16:54:06,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 292 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2025-03-17 16:54:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-17 16:54:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2025-03-17 16:54:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 46 states have (on average 1.5) internal successors, (69), 59 states have internal predecessors, (69), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 16:54:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 107 transitions. [2025-03-17 16:54:06,320 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 107 transitions. Word has length 19 [2025-03-17 16:54:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:54:06,320 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 107 transitions. [2025-03-17 16:54:06,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 16:54:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 107 transitions. [2025-03-17 16:54:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 16:54:06,321 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:54:06,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:54:06,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 16:54:06,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:54:06,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 16:54:06,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:54:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1388359421, now seen corresponding path program 1 times [2025-03-17 16:54:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:54:06,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117636565] [2025-03-17 16:54:06,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:54:06,525 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 [2025-03-17 16:54:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 16:54:06,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-17 16:54:06,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-17 16:54:06,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 16:54:06,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 16:54:06,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:54:06,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:54:06,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 16:54:06,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:54:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:54:06,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:54:06,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:54:06,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117636565] [2025-03-17 16:54:06,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117636565] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:54:06,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:54:06,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 16:54:06,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133445224] [2025-03-17 16:54:06,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:54:06,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 16:54:06,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:54:06,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 16:54:06,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:54:06,644 INFO L87 Difference]: Start difference. First operand 78 states and 107 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 16:54:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:54:06,661 INFO L93 Difference]: Finished difference Result 144 states and 194 transitions. [2025-03-17 16:54:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 16:54:06,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2025-03-17 16:54:06,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:54:06,662 INFO L225 Difference]: With dead ends: 144 [2025-03-17 16:54:06,662 INFO L226 Difference]: Without dead ends: 78 [2025-03-17 16:54:06,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:54:06,663 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:54:06,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:54:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-17 16:54:06,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2025-03-17 16:54:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 16:54:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2025-03-17 16:54:06,675 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 21 [2025-03-17 16:54:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:54:06,675 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2025-03-17 16:54:06,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 16:54:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2025-03-17 16:54:06,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 16:54:06,676 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:54:06,676 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:54:06,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-17 16:54:06,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 16:54:06,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 16:54:06,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:54:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1443717789, now seen corresponding path program 1 times [2025-03-17 16:54:06,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:54:06,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077854474] [2025-03-17 16:54:06,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:54:06,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:54:06,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:54:06,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 16:54:06,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 16:54:06,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 16:54:06,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 16:54:06,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:54:06,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:54:06,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 16:54:06,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:54:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:54:06,979 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:54:06,979 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:54:06,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077854474] [2025-03-17 16:54:06,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077854474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:54:06,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:54:06,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:54:06,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620523937] [2025-03-17 16:54:06,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:54:06,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:54:06,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:54:06,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:54:06,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:54:06,980 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 16:54:07,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:54:07,002 INFO L93 Difference]: Finished difference Result 138 states and 183 transitions. [2025-03-17 16:54:07,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:54:07,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2025-03-17 16:54:07,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:54:07,005 INFO L225 Difference]: With dead ends: 138 [2025-03-17 16:54:07,005 INFO L226 Difference]: Without dead ends: 79 [2025-03-17 16:54:07,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:54:07,005 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 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 [2025-03-17 16:54:07,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:54:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-17 16:54:07,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2025-03-17 16:54:07,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 60 states have internal predecessors, (69), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 16:54:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 107 transitions. [2025-03-17 16:54:07,016 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 107 transitions. Word has length 22 [2025-03-17 16:54:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:54:07,016 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 107 transitions. [2025-03-17 16:54:07,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 16:54:07,016 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2025-03-17 16:54:07,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-17 16:54:07,017 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:54:07,017 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:54:07,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 16:54:07,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:54:07,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 16:54:07,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:54:07,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1805605307, now seen corresponding path program 1 times [2025-03-17 16:54:07,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:54:07,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457796647] [2025-03-17 16:54:07,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:54:07,219 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 [2025-03-17 16:54:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 16:54:07,221 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-17 16:54:07,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-17 16:54:07,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 16:54:48,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 16:54:48,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:54:48,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:54:48,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 16:54:48,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:54:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:54:49,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:54:49,218 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:54:49,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457796647] [2025-03-17 16:54:49,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457796647] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:54:49,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:54:49,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 16:54:49,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188431282] [2025-03-17 16:54:49,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:54:49,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 16:54:49,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:54:49,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 16:54:49,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 16:54:49,218 INFO L87 Difference]: Start difference. First operand 79 states and 107 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 16:54:53,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-17 16:54:57,462 WARN L539 Checker$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] [2025-03-17 16:55:01,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-17 16:55:05,468 WARN L539 Checker$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] [2025-03-17 16:55:09,473 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] [2025-03-17 16:55:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:55:09,746 INFO L93 Difference]: Finished difference Result 139 states and 186 transitions. [2025-03-17 16:55:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 16:55:09,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-17 16:55:09,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:55:09,748 INFO L225 Difference]: With dead ends: 139 [2025-03-17 16:55:09,748 INFO L226 Difference]: Without dead ends: 84 [2025-03-17 16:55:09,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 16:55:09,749 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 16 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2025-03-17 16:55:09,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 281 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 5 Unknown, 0 Unchecked, 20.4s Time] [2025-03-17 16:55:09,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2025-03-17 16:55:09,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2025-03-17 16:55:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 61 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 16:55:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 108 transitions. [2025-03-17 16:55:09,758 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 108 transitions. Word has length 23 [2025-03-17 16:55:09,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:55:09,758 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 108 transitions. [2025-03-17 16:55:09,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 16:55:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 108 transitions. [2025-03-17 16:55:09,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-17 16:55:09,759 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:55:09,759 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:55:09,766 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 (5)] Ended with exit code 0 [2025-03-17 16:55:09,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 16:55:09,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 16:55:09,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:55:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -139189633, now seen corresponding path program 1 times [2025-03-17 16:55:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:55:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836591466] [2025-03-17 16:55:09,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:55:09,960 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 [2025-03-17 16:55:09,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 16:55:09,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-17 16:55:09,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-03-17 16:55:09,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes.