./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/nla-digbench-scaling/knuth_unwindbound20.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:14:45,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:14:45,537 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:14:45,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:14:45,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:14:45,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:14:45,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:14:45,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:14:45,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:14:45,573 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:14:45,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:14:45,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:14:45,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:14:45,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:14:45,575 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:14:45,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:14:45,576 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:14:45,577 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:14:45,577 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:14:45,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:14:45,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:14:45,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:14:45,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:14:45,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:14:45,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:14:45,579 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2025-02-06 14:14:45,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:14:45,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:14:45,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:14:45,859 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:14:45,859 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:14:45,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2025-02-06 14:14:47,166 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72a7b5f7b/b1297899ac9842d29c253065ac75539c/FLAG54606772c [2025-02-06 14:14:47,390 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:14:47,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2025-02-06 14:14:47,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72a7b5f7b/b1297899ac9842d29c253065ac75539c/FLAG54606772c [2025-02-06 14:14:47,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/72a7b5f7b/b1297899ac9842d29c253065ac75539c [2025-02-06 14:14:47,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:14:47,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:14:47,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:14:47,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:14:47,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:14:47,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:14:47" (1/1) ... [2025-02-06 14:14:47,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb92a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:47, skipping insertion in model container [2025-02-06 14:14:47,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:14:47" (1/1) ... [2025-02-06 14:14:47,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:14:47,873 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: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:1548) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1195) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1178) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:392) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1685) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3589) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2572) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:649) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-06 14:14:47,879 INFO L158 Benchmark]: Toolchain (without parser) took 158.95ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 97.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 14:14:47,880 INFO L158 Benchmark]: CDTParser took 1.80ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:14:47,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.64ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 97.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 14:14:47,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.80ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.64ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 97.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. 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/nla-digbench-scaling/knuth_unwindbound20.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:14:49,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:14:50,043 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2025-02-06 14:14:50,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:14:50,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:14:50,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:14:50,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:14:50,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:14:50,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:14:50,075 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:14:50,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:14:50,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:14:50,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:14:50,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:14:50,076 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:14:50,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:14:50,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:14:50,076 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 14:14:50,077 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:14:50,078 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 14:14:50,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:14:50,078 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:14:50,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:14:50,078 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:14:50,078 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:14:50,079 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:14:50,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:14:50,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:14:50,080 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 14:14:50,080 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 14:14:50,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:14:50,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:14:50,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:14:50,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:14:50,080 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2025-02-06 14:14:50,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:14:50,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:14:50,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:14:50,397 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:14:50,397 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:14:50,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2025-02-06 14:14:51,723 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a609ea11a/e33bd29b64bf45b0ae92c738f48b6951/FLAG0ef2175b1 [2025-02-06 14:14:51,972 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:14:51,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2025-02-06 14:14:51,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a609ea11a/e33bd29b64bf45b0ae92c738f48b6951/FLAG0ef2175b1 [2025-02-06 14:14:52,005 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a609ea11a/e33bd29b64bf45b0ae92c738f48b6951 [2025-02-06 14:14:52,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:14:52,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:14:52,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:14:52,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:14:52,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:14:52,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f55b54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52, skipping insertion in model container [2025-02-06 14:14:52,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,038 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:14:52,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:14:52,256 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:14:52,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:14:52,315 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:14:52,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52 WrapperNode [2025-02-06 14:14:52,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:14:52,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:14:52,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:14:52,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:14:52,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,353 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2025-02-06 14:14:52,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:14:52,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:14:52,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:14:52,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:14:52,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,377 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-02-06 14:14:52,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,384 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:14:52,389 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:14:52,389 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:14:52,389 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:14:52,390 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (1/1) ... [2025-02-06 14:14:52,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:14:52,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:14:52,424 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) [2025-02-06 14:14:52,430 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 [2025-02-06 14:14:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:14:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 14:14:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 14:14:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 14:14:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 14:14:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:14:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:14:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 14:14:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 14:14:52,504 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:14:52,507 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:14:57,392 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-06 14:14:57,393 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:14:57,400 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:14:57,400 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:14:57,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:14:57 BoogieIcfgContainer [2025-02-06 14:14:57,402 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:14:57,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:14:57,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:14:57,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:14:57,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:14:52" (1/3) ... [2025-02-06 14:14:57,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efe0157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:14:57, skipping insertion in model container [2025-02-06 14:14:57,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:52" (2/3) ... [2025-02-06 14:14:57,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efe0157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:14:57, skipping insertion in model container [2025-02-06 14:14:57,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:14:57" (3/3) ... [2025-02-06 14:14:57,413 INFO L128 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound20.i [2025-02-06 14:14:57,425 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:14:57,426 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG knuth_unwindbound20.i that has 3 procedures, 34 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-06 14:14:57,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:14:57,473 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;@5dac89d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:14:57,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 14:14:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 14:14:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 14:14:57,483 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:14:57,483 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:14:57,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:14:57,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:14:57,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1054334918, now seen corresponding path program 1 times [2025-02-06 14:14:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 14:14:57,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095791220] [2025-02-06 14:14:57,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:14:57,502 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 [2025-02-06 14:14:57,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 14:14:57,504 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2025-02-06 14:14:57,507 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 (2)] Waiting until timeout for monitored process [2025-02-06 14:14:57,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 14:14:57,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 14:14:57,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:14:57,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:14:57,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 14:14:57,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:14:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 14:14:57,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:14:57,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 14:14:57,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095791220] [2025-02-06 14:14:57,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095791220] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:14:57,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:14:57,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:14:57,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468959710] [2025-02-06 14:14:57,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:14:57,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 14:14:57,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 14:14:57,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 14:14:57,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 14:14:57,860 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:14:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:14:57,875 INFO L93 Difference]: Finished difference Result 63 states and 93 transitions. [2025-02-06 14:14:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 14:14:57,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2025-02-06 14:14:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:14:57,882 INFO L225 Difference]: With dead ends: 63 [2025-02-06 14:14:57,882 INFO L226 Difference]: Without dead ends: 26 [2025-02-06 14:14:57,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 14:14:57,890 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:14:57,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:14:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-02-06 14:14:57,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-02-06 14:14:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 14:14:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2025-02-06 14:14:57,931 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15 [2025-02-06 14:14:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:14:57,931 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2025-02-06 14:14:57,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:14:57,933 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2025-02-06 14:14:57,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 14:14:57,935 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:14:57,935 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:14:57,948 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 (2)] Ended with exit code 0 [2025-02-06 14:14:58,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /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 [2025-02-06 14:14:58,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:14:58,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:14:58,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1603024999, now seen corresponding path program 1 times [2025-02-06 14:14:58,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 14:14:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067799982] [2025-02-06 14:14:58,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:14:58,137 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 [2025-02-06 14:14:58,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 14:14:58,140 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2025-02-06 14:14:58,141 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 (3)] Waiting until timeout for monitored process [2025-02-06 14:14:58,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 14:14:58,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 14:14:58,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:14:58,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:14:58,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 14:14:58,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:14:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 14:14:59,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:14:59,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 14:14:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067799982] [2025-02-06 14:14:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067799982] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:14:59,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:14:59,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:14:59,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456812961] [2025-02-06 14:14:59,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:14:59,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:14:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 14:14:59,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:14:59,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:14:59,563 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 14:15:00,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:15:00,132 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2025-02-06 14:15:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:15:00,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-02-06 14:15:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:15:00,133 INFO L225 Difference]: With dead ends: 31 [2025-02-06 14:15:00,133 INFO L226 Difference]: Without dead ends: 30 [2025-02-06 14:15:00,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:15:00,134 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:15:00,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 14:15:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-06 14:15:00,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2025-02-06 14:15:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 14:15:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2025-02-06 14:15:00,142 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 16 [2025-02-06 14:15:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:15:00,143 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2025-02-06 14:15:00,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 14:15:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2025-02-06 14:15:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-06 14:15:00,144 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:15:00,144 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:15:00,156 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 (3)] Ended with exit code 0 [2025-02-06 14:15:00,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 [2025-02-06 14:15:00,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:15:00,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:15:00,346 INFO L85 PathProgramCache]: Analyzing trace with hash 443125580, now seen corresponding path program 1 times [2025-02-06 14:15:00,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 14:15:00,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767649084] [2025-02-06 14:15:00,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:15:00,347 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 [2025-02-06 14:15:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 14:15:00,351 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2025-02-06 14:15:00,352 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 (4)] Waiting until timeout for monitored process [2025-02-06 14:15:00,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 14:15:00,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:15:00,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:15:00,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:15:00,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 14:15:00,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:15:03,655 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-02-06 14:15:03,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:15:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-02-06 14:15:06,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 14:15:06,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767649084] [2025-02-06 14:15:06,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767649084] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:15:06,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:15:06,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2025-02-06 14:15:06,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922934871] [2025-02-06 14:15:06,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:15:06,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:15:06,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 14:15:06,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:15:06,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:15:06,583 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-02-06 14:15:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:15:13,879 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2025-02-06 14:15:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 14:15:13,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 42 [2025-02-06 14:15:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:15:13,881 INFO L225 Difference]: With dead ends: 78 [2025-02-06 14:15:13,881 INFO L226 Difference]: Without dead ends: 77 [2025-02-06 14:15:13,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2025-02-06 14:15:13,882 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-02-06 14:15:13,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 140 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2025-02-06 14:15:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-02-06 14:15:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-02-06 14:15:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 14:15:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2025-02-06 14:15:13,898 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 42 [2025-02-06 14:15:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:15:13,899 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2025-02-06 14:15:13,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-02-06 14:15:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2025-02-06 14:15:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-02-06 14:15:13,904 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:15:13,905 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:15:13,926 INFO L540 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 (4)] Forceful destruction successful, exit code 0 [2025-02-06 14:15:14,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2025-02-06 14:15:14,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:15:14,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:15:14,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1208390683, now seen corresponding path program 2 times [2025-02-06 14:15:14,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 14:15:14,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807531920] [2025-02-06 14:15:14,108 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:15:14,108 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 [2025-02-06 14:15:14,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 14:15:14,110 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) [2025-02-06 14:15:14,112 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 [2025-02-06 14:15:14,150 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 120 statements into 2 equivalence classes. [2025-02-06 14:15:14,723 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 120 of 120 statements. [2025-02-06 14:15:14,723 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:15:14,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:15:14,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 14:15:14,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:15:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-02-06 14:15:25,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:15:37,235 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2025-02-06 14:15:37,236 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 14:15:37,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807531920] [2025-02-06 14:15:37,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807531920] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:15:37,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:15:37,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2025-02-06 14:15:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879720392] [2025-02-06 14:15:37,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:15:37,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 14:15:37,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 14:15:37,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 14:15:37,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2025-02-06 14:15:37,240 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2025-02-06 14:16:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:16:09,933 INFO L93 Difference]: Finished difference Result 174 states and 240 transitions. [2025-02-06 14:16:09,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-06 14:16:09,933 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) Word has length 120 [2025-02-06 14:16:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:16:09,936 INFO L225 Difference]: With dead ends: 174 [2025-02-06 14:16:09,936 INFO L226 Difference]: Without dead ends: 173 [2025-02-06 14:16:09,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=533, Invalid=1447, Unknown=0, NotChecked=0, Total=1980 [2025-02-06 14:16:09,938 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 294 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:16:09,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 975 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2025-02-06 14:16:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-06 14:16:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-06 14:16:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 119 states have internal predecessors, (150), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-02-06 14:16:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 234 transitions. [2025-02-06 14:16:09,966 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 234 transitions. Word has length 120 [2025-02-06 14:16:09,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:16:09,966 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 234 transitions. [2025-02-06 14:16:09,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 22 states have internal predecessors, (81), 10 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2025-02-06 14:16:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 234 transitions. [2025-02-06 14:16:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2025-02-06 14:16:09,970 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:16:09,971 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:16:10,011 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 [2025-02-06 14:16:10,171 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 [2025-02-06 14:16:10,171 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:16:10,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:16:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash 891968983, now seen corresponding path program 3 times [2025-02-06 14:16:10,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 14:16:10,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229638183] [2025-02-06 14:16:10,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:16:10,175 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 [2025-02-06 14:16:10,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 14:16:10,176 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) [2025-02-06 14:16:10,177 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 [2025-02-06 14:16:10,241 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 276 statements into 23 equivalence classes. [2025-02-06 14:16:10,485 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 27 of 276 statements. [2025-02-06 14:16:10,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 14:16:10,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:16:10,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 14:16:10,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:16:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3604 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked. [2025-02-06 14:16:12,295 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:16:12,295 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 14:16:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229638183] [2025-02-06 14:16:12,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229638183] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:16:12,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:16:12,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:16:12,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137889588] [2025-02-06 14:16:12,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:16:12,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:16:12,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 14:16:12,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:16:12,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:16:12,299 INFO L87 Difference]: Start difference. First operand 173 states and 234 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-06 14:16:13,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:16:13,930 INFO L93 Difference]: Finished difference Result 173 states and 234 transitions. [2025-02-06 14:16:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:16:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 276 [2025-02-06 14:16:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:16:13,944 INFO L225 Difference]: With dead ends: 173 [2025-02-06 14:16:13,944 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 14:16:13,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:16:13,946 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:16:13,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 14:16:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 14:16:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 14:16:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:16:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 14:16:13,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2025-02-06 14:16:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:16:13,949 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 14:16:13,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-06 14:16:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 14:16:13,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 14:16:13,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 14:16:13,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 14:16:13,972 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 (6)] Ended with exit code 0 [2025-02-06 14:16:14,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2025-02-06 14:16:14,156 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2025-02-06 14:16:14,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 14:16:19,213 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 14:16:19,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 02:16:19 BoogieIcfgContainer [2025-02-06 14:16:19,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 14:16:19,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 14:16:19,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 14:16:19,221 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 14:16:19,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:14:57" (3/4) ... [2025-02-06 14:16:19,223 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 14:16:19,227 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-06 14:16:19,227 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-06 14:16:19,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-06 14:16:19,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 14:16:19,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 14:16:19,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 14:16:19,232 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 14:16:19,301 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 14:16:19,301 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 14:16:19,302 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 14:16:19,302 INFO L158 Benchmark]: Toolchain (without parser) took 87292.26ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 33.4MB in the end (delta: 58.9MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2025-02-06 14:16:19,303 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:16:19,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.76ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.3MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 14:16:19,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.72ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 14:16:19,305 INFO L158 Benchmark]: Boogie Preprocessor took 31.26ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:16:19,305 INFO L158 Benchmark]: IcfgBuilder took 5013.58ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 60.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 14:16:19,305 INFO L158 Benchmark]: TraceAbstraction took 81815.31ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 39.0MB in the end (delta: 20.5MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2025-02-06 14:16:19,306 INFO L158 Benchmark]: Witness Printer took 80.89ms. Allocated memory is still 117.4MB. Free memory was 39.0MB in the beginning and 33.4MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 14:16:19,308 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.76ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.3MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.72ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.26ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 5013.58ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 60.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 81815.31ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 39.0MB in the end (delta: 20.5MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 80.89ms. Allocated memory is still 117.4MB. Free memory was 39.0MB in the beginning and 33.4MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 76.7s, OverallIterations: 5, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 42.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 25.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 1300 SdHoareTripleChecker+Invalid, 24.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1091 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 209 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 29.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=4, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 469 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 624 ConstructedInterpolants, 0 QuantifiedInterpolants, 1486 SizeOfPredicates, 14 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 4252/4786 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Location Invariant Derived location invariant: (((counter + -1) % 4294967296) < 20) RESULT: Ultimate proved your program to be correct! [2025-02-06 14:16:19,522 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2025-02-06 14:16:19,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE