./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:32:23,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:32:23,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:32:23,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:32:23,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:32:23,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:32:23,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:32:23,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:32:23,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:32:23,539 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:32:23,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:32:23,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:32:23,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:32:23,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:32:23,541 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:32:23,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:32:23,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:32:23,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:32:23,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:32:23,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:32:23,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:32:23,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:32:23,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:32:23,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:32:23,544 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:32:23,545 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:32:23,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:32:23,545 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:32:23,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:32:23,545 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:32:23,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:32:23,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:32:23,546 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:32:23,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:32:23,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:32:23,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:32:23,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:32:23,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:32:23,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:32:23,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:32:23,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:32:23,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:32:23,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:32:23,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:32:23,549 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca [2024-11-12 17:32:23,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:32:23,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:32:23,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:32:23,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:32:23,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:32:23,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-11-12 17:32:25,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:32:25,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:32:25,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-11-12 17:32:25,154 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be19d3534/1e82bdb4bba44b14a08b482f1ff08d7f/FLAG18ea42769 [2024-11-12 17:32:25,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be19d3534/1e82bdb4bba44b14a08b482f1ff08d7f [2024-11-12 17:32:25,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:32:25,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:32:25,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:32:25,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:32:25,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:32:25,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:32:25" (1/1) ... [2024-11-12 17:32:25,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56861c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:25, skipping insertion in model container [2024-11-12 17:32:25,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:32:25" (1/1) ... [2024-11-12 17:32:25,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:32:25,725 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:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) 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:1601) 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:790) 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:1509) 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:1165) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1148) 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:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1628) 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:3506) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2498) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:640) 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) [2024-11-12 17:32:25,732 INFO L158 Benchmark]: Toolchain (without parser) took 173.68ms. Allocated memory is still 182.5MB. Free memory was 112.1MB in the beginning and 101.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 17:32:25,732 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 121.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:32:25,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.01ms. Allocated memory is still 182.5MB. Free memory was 111.8MB in the beginning and 101.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 17:32:25,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 121.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.01ms. Allocated memory is still 182.5MB. Free memory was 111.8MB in the beginning and 101.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. 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:627) 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:32:27,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:32:27,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-12 17:32:27,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:32:27,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:32:27,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:32:27,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:32:27,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:32:27,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:32:27,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:32:27,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:32:27,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:32:27,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:32:27,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:32:27,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:32:27,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:32:27,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:32:27,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:32:27,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:32:27,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:32:27,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:32:27,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:32:27,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:32:27,313 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 17:32:27,313 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 17:32:27,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:32:27,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:32:27,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:32:27,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:32:27,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:32:27,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:32:27,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:32:27,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:32:27,315 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 17:32:27,317 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 17:32:27,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:32:27,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:32:27,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:32:27,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:32:27,317 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca [2024-11-12 17:32:27,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:32:27,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:32:27,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:32:27,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:32:27,581 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:32:27,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-11-12 17:32:28,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:32:29,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:32:29,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-11-12 17:32:29,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e36dc59/bccc224d67284f60a0cca7ff2ed595fa/FLAG538263039 [2024-11-12 17:32:29,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e36dc59/bccc224d67284f60a0cca7ff2ed595fa [2024-11-12 17:32:29,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:32:29,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:32:29,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:32:29,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:32:29,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:32:29,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4683a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29, skipping insertion in model container [2024-11-12 17:32:29,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:32:29,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:32:29,635 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:32:29,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:32:29,690 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:32:29,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29 WrapperNode [2024-11-12 17:32:29,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:32:29,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:32:29,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:32:29,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:32:29,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,729 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-12 17:32:29,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:32:29,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:32:29,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:32:29,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:32:29,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,757 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]. [2024-11-12 17:32:29,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:32:29,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:32:29,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:32:29,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:32:29,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (1/1) ... [2024-11-12 17:32:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:32:29,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:32:29,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 17:32:29,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 17:32:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:32:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 17:32:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-12 17:32:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 17:32:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 17:32:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:32:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:32:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:32:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:32:29,891 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:32:29,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:32:35,057 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-12 17:32:35,057 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:32:35,067 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:32:35,067 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 17:32:35,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:32:35 BoogieIcfgContainer [2024-11-12 17:32:35,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:32:35,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:32:35,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:32:35,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:32:35,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:32:29" (1/3) ... [2024-11-12 17:32:35,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d35e040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:32:35, skipping insertion in model container [2024-11-12 17:32:35,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:32:29" (2/3) ... [2024-11-12 17:32:35,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d35e040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:32:35, skipping insertion in model container [2024-11-12 17:32:35,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:32:35" (3/3) ... [2024-11-12 17:32:35,075 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound100.i [2024-11-12 17:32:35,086 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:32:35,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 17:32:35,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:32:35,131 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;@5a1b8f7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:32:35,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 17:32:35,134 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) [2024-11-12 17:32:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 17:32:35,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:32:35,139 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:32:35,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:32:35,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:32:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1741385281, now seen corresponding path program 1 times [2024-11-12 17:32:35,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:32:35,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529629751] [2024-11-12 17:32:35,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:32:35,168 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 [2024-11-12 17:32:35,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:32:35,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 17:32:35,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-12 17:32:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:32:35,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-12 17:32:35,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:32:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 17:32:35,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:32:35,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 17:32:35,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529629751] [2024-11-12 17:32:35,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529629751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:32:35,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:32:35,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:32:35,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180414144] [2024-11-12 17:32:35,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:32:35,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 17:32:35,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 17:32:35,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 17:32:35,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:32:35,424 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) [2024-11-12 17:32:35,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:32:35,439 INFO L93 Difference]: Finished difference Result 63 states and 93 transitions. [2024-11-12 17:32:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 17:32:35,440 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 [2024-11-12 17:32:35,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:32:35,444 INFO L225 Difference]: With dead ends: 63 [2024-11-12 17:32:35,444 INFO L226 Difference]: Without dead ends: 26 [2024-11-12 17:32:35,447 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 [2024-11-12 17:32:35,449 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 [2024-11-12 17:32:35,449 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] [2024-11-12 17:32:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-12 17:32:35,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-12 17:32:35,474 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) [2024-11-12 17:32:35,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-12 17:32:35,476 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15 [2024-11-12 17:32:35,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:32:35,476 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-12 17:32:35,476 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) [2024-11-12 17:32:35,477 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-12 17:32:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-12 17:32:35,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:32:35,478 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:32:35,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-12 17:32:35,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:32:35,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:32:35,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:32:35,679 INFO L85 PathProgramCache]: Analyzing trace with hash -410163315, now seen corresponding path program 1 times [2024-11-12 17:32:35,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:32:35,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139238975] [2024-11-12 17:32:35,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:32:35,680 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 [2024-11-12 17:32:35,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:32:35,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 17:32:35,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-12 17:32:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:32:35,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:32:35,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:32:36,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 17:32:36,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:32:36,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 17:32:36,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139238975] [2024-11-12 17:32:36,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139238975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:32:36,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:32:36,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:32:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269240884] [2024-11-12 17:32:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:32:36,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:32:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 17:32:36,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:32:36,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:32:36,863 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) [2024-11-12 17:32:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:32:37,353 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-12 17:32:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:32:37,354 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 [2024-11-12 17:32:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:32:37,354 INFO L225 Difference]: With dead ends: 31 [2024-11-12 17:32:37,354 INFO L226 Difference]: Without dead ends: 30 [2024-11-12 17:32:37,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:32:37,356 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:32:37,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:32:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-12 17:32:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-12 17:32:37,360 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) [2024-11-12 17:32:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-12 17:32:37,362 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 16 [2024-11-12 17:32:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:32:37,363 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-12 17:32:37,363 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) [2024-11-12 17:32:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-12 17:32:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-12 17:32:37,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:32:37,364 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] [2024-11-12 17:32:37,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-12 17:32:37,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:32:37,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:32:37,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:32:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1864935099, now seen corresponding path program 1 times [2024-11-12 17:32:37,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:32:37,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237535676] [2024-11-12 17:32:37,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:32:37,567 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 [2024-11-12 17:32:37,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:32:37,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 17:32:37,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-12 17:32:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:32:37,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:32:37,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:32:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-12 17:32:40,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:32:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-12 17:32:43,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 17:32:43,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237535676] [2024-11-12 17:32:43,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237535676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:32:43,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:32:43,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2024-11-12 17:32:43,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920480956] [2024-11-12 17:32:43,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:32:43,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:32:43,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 17:32:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:32:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:32:43,401 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) [2024-11-12 17:32:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:32:49,814 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2024-11-12 17:32:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:32:49,815 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 [2024-11-12 17:32:49,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:32:49,817 INFO L225 Difference]: With dead ends: 78 [2024-11-12 17:32:49,817 INFO L226 Difference]: Without dead ends: 77 [2024-11-12 17:32:49,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:32:49,819 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:32:49,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 140 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-12 17:32:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-12 17:32:49,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-12 17:32:49,829 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) [2024-11-12 17:32:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2024-11-12 17:32:49,830 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 42 [2024-11-12 17:32:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:32:49,830 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2024-11-12 17:32:49,831 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) [2024-11-12 17:32:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2024-11-12 17:32:49,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-12 17:32:49,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:32:49,833 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] [2024-11-12 17:32:49,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-12 17:32:50,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:32:50,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:32:50,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:32:50,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1972669627, now seen corresponding path program 2 times [2024-11-12 17:32:50,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:32:50,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221989530] [2024-11-12 17:32:50,036 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:32:50,036 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 [2024-11-12 17:32:50,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:32:50,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 17:32:50,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-12 17:32:50,531 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:32:50,532 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:32:50,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 17:32:50,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:33:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-12 17:33:00,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:33:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-12 17:33:12,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 17:33:12,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221989530] [2024-11-12 17:33:12,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221989530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:33:12,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:33:12,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2024-11-12 17:33:12,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810831895] [2024-11-12 17:33:12,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:33:12,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 17:33:12,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 17:33:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 17:33:12,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-11-12 17:33:12,720 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) [2024-11-12 17:33:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:33:49,716 INFO L93 Difference]: Finished difference Result 174 states and 240 transitions. [2024-11-12 17:33:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-12 17:33:49,716 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 [2024-11-12 17:33:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:33:49,718 INFO L225 Difference]: With dead ends: 174 [2024-11-12 17:33:49,719 INFO L226 Difference]: Without dead ends: 173 [2024-11-12 17:33:49,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=533, Invalid=1447, Unknown=0, NotChecked=0, Total=1980 [2024-11-12 17:33:49,720 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 294 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s 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, 21.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:33:49,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 975 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2024-11-12 17:33:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-12 17:33:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-12 17:33:49,756 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) [2024-11-12 17:33:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 234 transitions. [2024-11-12 17:33:49,761 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 234 transitions. Word has length 120 [2024-11-12 17:33:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:33:49,761 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 234 transitions. [2024-11-12 17:33:49,762 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) [2024-11-12 17:33:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 234 transitions. [2024-11-12 17:33:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-12 17:33:49,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:33:49,767 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] [2024-11-12 17:33:49,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-12 17:33:49,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:33:49,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:33:49,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:33:49,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1974824999, now seen corresponding path program 3 times [2024-11-12 17:33:49,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 17:33:49,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666868871] [2024-11-12 17:33:49,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:33:49,970 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 [2024-11-12 17:33:49,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 17:33:49,971 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 17:33:49,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-12 17:33:50,232 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-12 17:33:50,232 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:33:50,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:33:50,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:33:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3604 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked. [2024-11-12 17:33:52,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:33:52,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 17:33:52,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666868871] [2024-11-12 17:33:52,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666868871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:33:52,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:33:52,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:33:52,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417680243] [2024-11-12 17:33:52,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:33:52,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:33:52,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 17:33:52,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:33:52,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:33:52,519 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) [2024-11-12 17:33:54,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:33:54,388 INFO L93 Difference]: Finished difference Result 173 states and 234 transitions. [2024-11-12 17:33:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:33:54,397 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 [2024-11-12 17:33:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:33:54,398 INFO L225 Difference]: With dead ends: 173 [2024-11-12 17:33:54,398 INFO L226 Difference]: Without dead ends: 0 [2024-11-12 17:33:54,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:33:54,400 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:33:54,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 17:33:54,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-12 17:33:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-12 17:33:54,403 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) [2024-11-12 17:33:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 17:33:54,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2024-11-12 17:33:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:33:54,403 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 17:33:54,404 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) [2024-11-12 17:33:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-12 17:33:54,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-12 17:33:54,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 17:33:54,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 17:33:54,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-12 17:33:54,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 17:33:54,611 INFO L421 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-12 17:33:54,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-12 17:34:00,757 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 17:34:00,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:34:00 BoogieIcfgContainer [2024-11-12 17:34:00,781 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 17:34:00,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 17:34:00,783 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 17:34:00,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 17:34:00,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:32:35" (3/4) ... [2024-11-12 17:34:00,785 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 17:34:00,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-12 17:34:00,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-12 17:34:00,791 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-12 17:34:00,792 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-12 17:34:00,792 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 17:34:00,793 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 17:34:00,793 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 17:34:00,859 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 17:34:00,859 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 17:34:00,859 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 17:34:00,859 INFO L158 Benchmark]: Toolchain (without parser) took 91440.06ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 41.3MB in the beginning and 33.1MB in the end (delta: 8.2MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,859 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:34:00,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.39ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 41.1MB in the beginning and 65.0MB in the end (delta: -23.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.26ms. Allocated memory is still 86.0MB. Free memory was 65.0MB in the beginning and 63.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,860 INFO L158 Benchmark]: Boogie Preprocessor took 44.24ms. Allocated memory is still 86.0MB. Free memory was 63.2MB in the beginning and 60.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,860 INFO L158 Benchmark]: RCFGBuilder took 5290.24ms. Allocated memory is still 86.0MB. Free memory was 60.8MB in the beginning and 44.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,860 INFO L158 Benchmark]: TraceAbstraction took 85710.99ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 38.1MB in the end (delta: 5.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,861 INFO L158 Benchmark]: Witness Printer took 76.70ms. Allocated memory is still 86.0MB. Free memory was 38.1MB in the beginning and 33.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 17:34:00,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory was 41.6MB in the beginning and 41.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.39ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 41.1MB in the beginning and 65.0MB in the end (delta: -23.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.26ms. Allocated memory is still 86.0MB. Free memory was 65.0MB in the beginning and 63.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.24ms. Allocated memory is still 86.0MB. Free memory was 63.2MB in the beginning and 60.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5290.24ms. Allocated memory is still 86.0MB. Free memory was 60.8MB in the beginning and 44.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 85710.99ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 38.1MB in the end (delta: 5.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 76.70ms. Allocated memory is still 86.0MB. Free memory was 38.1MB in the beginning and 33.1MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. 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: 79.5s, OverallIterations: 5, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 45.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 1300 SdHoareTripleChecker+Invalid, 25.7s 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, 32.3s 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, 1.2s SatisfiabilityAnalysisTime, 31.0s 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((counter + -1) % 4294967296) < 100) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (0 == counter) Ensures: ((0 == counter) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (((counter + -1) % 4294967296) < 100) Ensures: ((((counter + -1) % 4294967296) < 100) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-12 17:34:01,076 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-12 17:34:01,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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