./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.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 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:55:18,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:55:18,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:55:18,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:55:18,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:55:18,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:55:18,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:55:18,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:55:18,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:55:18,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:55:18,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:55:18,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:55:18,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:55:18,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:55:18,363 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:55:18,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:55:18,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:55:18,364 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:55:18,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:55:18,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:55:18,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:55:18,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:55:18,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:55:18,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:55:18,369 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:55:18,369 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:55:18,370 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:55:18,370 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:55:18,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:55:18,370 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:55:18,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:55:18,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:55:18,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:55:18,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:55:18,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:55:18,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:55:18,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:55:18,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:55:18,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:55:18,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:55:18,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:55:18,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:55:18,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:55:18,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:55:18,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2024-10-14 20:55:18,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:55:18,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:55:18,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:55:18,669 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:55:18,669 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:55:18,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-10-14 20:55:20,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:55:20,346 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:55:20,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-10-14 20:55:20,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181322fee/c0219a06e8664fc6a7421fb508061d12/FLAGe511fd6cc [2024-10-14 20:55:20,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181322fee/c0219a06e8664fc6a7421fb508061d12 [2024-10-14 20:55:20,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:55:20,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:55:20,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:55:20,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:55:20,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:55:20,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:55:20" (1/1) ... [2024-10-14 20:55:20,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcdd484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:20, skipping insertion in model container [2024-10-14 20:55:20,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:55:20" (1/1) ... [2024-10-14 20:55:20,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:55:20,909 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2735) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1586) 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:789) 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:1494) 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:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1133) 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:387) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1613) 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:3471) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2497) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:639) 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) [2024-10-14 20:55:20,914 INFO L158 Benchmark]: Toolchain (without parser) took 181.91ms. Allocated memory is still 188.7MB. Free memory was 134.4MB in the beginning and 124.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 20:55:20,915 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 130.0MB. Free memory was 95.0MB in the beginning and 95.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:55:20,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.16ms. Allocated memory is still 188.7MB. Free memory was 134.4MB in the beginning and 124.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 20:55:20,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 130.0MB. Free memory was 95.0MB in the beginning and 95.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.16ms. Allocated memory is still 188.7MB. Free memory was 134.4MB in the beginning and 124.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) 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/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.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 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:55:22,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:55:22,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-10-14 20:55:22,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:55:22,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:55:22,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:55:22,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:55:22,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:55:22,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:55:22,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:55:22,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:55:22,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:55:22,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:55:22,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:55:22,930 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:55:22,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:55:22,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:55:22,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:55:22,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:55:22,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:55:22,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:55:22,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:55:22,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:55:22,937 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 20:55:22,937 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 20:55:22,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:55:22,938 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:55:22,938 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 20:55:22,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:55:22,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:55:22,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:55:22,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:55:22,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:55:22,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:55:22,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:55:22,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:55:22,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:55:22,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:55:22,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:55:22,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:55:22,941 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 20:55:22,942 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 20:55:22,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:55:22,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:55:22,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:55:22,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:55:22,943 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 20:55:22,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2024-10-14 20:55:23,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:55:23,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:55:23,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:55:23,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:55:23,305 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:55:23,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-10-14 20:55:24,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:55:25,128 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:55:25,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-10-14 20:55:25,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4f9ab28/6b074fe91a9a4dd9b7baf882e0f174af/FLAG6e04d7f4e [2024-10-14 20:55:25,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d4f9ab28/6b074fe91a9a4dd9b7baf882e0f174af [2024-10-14 20:55:25,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:55:25,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:55:25,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:55:25,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:55:25,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:55:25,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61436810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25, skipping insertion in model container [2024-10-14 20:55:25,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:55:25,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:55:25,401 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:55:25,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:55:25,462 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:55:25,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25 WrapperNode [2024-10-14 20:55:25,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:55:25,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:55:25,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:55:25,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:55:25,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,507 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-10-14 20:55:25,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:55:25,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:55:25,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:55:25,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:55:25,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,548 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]. [2024-10-14 20:55:25,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:55:25,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:55:25,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:55:25,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:55:25,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (1/1) ... [2024-10-14 20:55:25,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:55:25,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:55:25,611 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) [2024-10-14 20:55:25,614 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 [2024-10-14 20:55:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:55:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 20:55:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 20:55:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:55:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:55:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:55:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:55:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:55:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:55:25,735 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:55:25,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:55:31,080 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-14 20:55:31,081 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:55:31,114 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:55:31,115 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:55:31,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:55:31 BoogieIcfgContainer [2024-10-14 20:55:31,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:55:31,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:55:31,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:55:31,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:55:31,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:55:25" (1/3) ... [2024-10-14 20:55:31,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d21b509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:55:31, skipping insertion in model container [2024-10-14 20:55:31,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:55:25" (2/3) ... [2024-10-14 20:55:31,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d21b509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:55:31, skipping insertion in model container [2024-10-14 20:55:31,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:55:31" (3/3) ... [2024-10-14 20:55:31,122 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound20.i [2024-10-14 20:55:31,137 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:55:31,137 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 20:55:31,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:55:31,212 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;@1dd936bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:55:31,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 20:55:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 21 states have internal predecessors, (30), 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) [2024-10-14 20:55:31,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:55:31,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:55:31,223 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:55:31,224 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:55:31,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:55:31,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1262785335, now seen corresponding path program 1 times [2024-10-14 20:55:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:55:31,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043058574] [2024-10-14 20:55:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:55:31,242 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 [2024-10-14 20:55:31,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:55:31,245 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) [2024-10-14 20:55:31,246 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 [2024-10-14 20:55:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:55:31,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 20:55:31,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:55:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:55:31,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:55:31,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:55:31,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043058574] [2024-10-14 20:55:31,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043058574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:55:31,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:55:31,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 20:55:31,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489507493] [2024-10-14 20:55:31,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:55:31,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:55:31,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:55:31,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:55:31,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:55:31,551 INFO L87 Difference]: Start difference. First operand has 30 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 21 states have internal predecessors, (30), 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, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 20:55:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:55:31,666 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2024-10-14 20:55:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:55:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 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 14 [2024-10-14 20:55:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:55:31,677 INFO L225 Difference]: With dead ends: 56 [2024-10-14 20:55:31,677 INFO L226 Difference]: Without dead ends: 25 [2024-10-14 20:55:31,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:55:31,682 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:55:31,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:55:31,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-14 20:55:31,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-14 20:55:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2024-10-14 20:55:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2024-10-14 20:55:31,719 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 14 [2024-10-14 20:55:31,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:55:31,719 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2024-10-14 20:55:31,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 20:55:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2024-10-14 20:55:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 20:55:31,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:55:31,721 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:55:31,734 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 [2024-10-14 20:55:31,921 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 [2024-10-14 20:55:31,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:55:31,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:55:31,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1541533123, now seen corresponding path program 1 times [2024-10-14 20:55:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:55:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225321379] [2024-10-14 20:55:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:55:31,926 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 [2024-10-14 20:55:31,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:55:31,934 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) [2024-10-14 20:55:31,938 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 [2024-10-14 20:55:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:55:32,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:55:32,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:55:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:55:33,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:55:33,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:55:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225321379] [2024-10-14 20:55:33,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225321379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:55:33,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:55:33,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:55:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565238781] [2024-10-14 20:55:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:55:33,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:55:33,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:55:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:55:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:55:33,180 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-14 20:55:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:55:33,725 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2024-10-14 20:55:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:55:33,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 15 [2024-10-14 20:55:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:55:33,727 INFO L225 Difference]: With dead ends: 30 [2024-10-14 20:55:33,727 INFO L226 Difference]: Without dead ends: 29 [2024-10-14 20:55:33,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:55:33,728 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:55:33,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 73 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:55:33,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-10-14 20:55:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-10-14 20:55:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2024-10-14 20:55:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-10-14 20:55:33,735 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 15 [2024-10-14 20:55:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:55:33,737 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-10-14 20:55:33,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-14 20:55:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-10-14 20:55:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:55:33,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:55:33,739 INFO L215 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] [2024-10-14 20:55:33,753 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 (3)] Forceful destruction successful, exit code 0 [2024-10-14 20:55:33,939 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 [2024-10-14 20:55:33,940 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:55:33,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:55:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash -396675727, now seen corresponding path program 1 times [2024-10-14 20:55:33,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:55:33,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977266206] [2024-10-14 20:55:33,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:55:33,942 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 [2024-10-14 20:55:33,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:55:33,944 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) [2024-10-14 20:55:33,946 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 [2024-10-14 20:55:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:55:34,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:55:34,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:55:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:55:37,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:55:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:55:39,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:55:39,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977266206] [2024-10-14 20:55:39,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977266206] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:55:39,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:55:39,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2024-10-14 20:55:39,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980590934] [2024-10-14 20:55:39,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:55:39,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:55:39,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:55:39,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:55:39,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:55:39,842 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 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) [2024-10-14 20:55:46,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:55:46,811 INFO L93 Difference]: Finished difference Result 77 states and 104 transitions. [2024-10-14 20:55:46,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:55:46,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 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 41 [2024-10-14 20:55:46,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:55:46,813 INFO L225 Difference]: With dead ends: 77 [2024-10-14 20:55:46,813 INFO L226 Difference]: Without dead ends: 76 [2024-10-14 20:55:46,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:55:46,815 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:55:46,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 160 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-10-14 20:55:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-14 20:55:46,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-14 20:55:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 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) [2024-10-14 20:55:46,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 101 transitions. [2024-10-14 20:55:46,835 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 101 transitions. Word has length 41 [2024-10-14 20:55:46,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:55:46,835 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 101 transitions. [2024-10-14 20:55:46,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 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) [2024-10-14 20:55:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2024-10-14 20:55:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 20:55:46,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:55:46,839 INFO L215 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] [2024-10-14 20:55:46,855 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 [2024-10-14 20:55:47,039 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 [2024-10-14 20:55:47,040 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:55:47,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:55:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash 950950779, now seen corresponding path program 2 times [2024-10-14 20:55:47,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:55:47,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436070572] [2024-10-14 20:55:47,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:55:47,041 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 [2024-10-14 20:55:47,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:55:47,042 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) [2024-10-14 20:55:47,043 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 [2024-10-14 20:55:47,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:55:47,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:55:47,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:55:47,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:55:57,899 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-14 20:55:57,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:56:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-10-14 20:56:10,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:56:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436070572] [2024-10-14 20:56:10,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436070572] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:56:10,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:56:10,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2024-10-14 20:56:10,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278174304] [2024-10-14 20:56:10,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:56:10,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 20:56:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:56:10,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 20:56:10,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-10-14 20:56:10,312 INFO L87 Difference]: Start difference. First operand 76 states and 101 transitions. Second operand has 22 states, 21 states have (on average 3.761904761904762) internal successors, (79), 22 states have internal predecessors, (79), 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) [2024-10-14 20:56:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:56:45,811 INFO L93 Difference]: Finished difference Result 173 states and 239 transitions. [2024-10-14 20:56:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 20:56:45,811 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.761904761904762) internal successors, (79), 22 states have internal predecessors, (79), 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 119 [2024-10-14 20:56:45,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:56:45,814 INFO L225 Difference]: With dead ends: 173 [2024-10-14 20:56:45,814 INFO L226 Difference]: Without dead ends: 172 [2024-10-14 20:56:45,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=533, Invalid=1447, Unknown=0, NotChecked=0, Total=1980 [2024-10-14 20:56:45,816 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 276 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:56:45,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 803 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2024-10-14 20:56:45,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-14 20:56:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-10-14 20:56:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 118 states have internal predecessors, (149), 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) [2024-10-14 20:56:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 233 transitions. [2024-10-14 20:56:45,861 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 233 transitions. Word has length 119 [2024-10-14 20:56:45,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:56:45,862 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 233 transitions. [2024-10-14 20:56:45,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.761904761904762) internal successors, (79), 22 states have internal predecessors, (79), 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) [2024-10-14 20:56:45,863 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 233 transitions. [2024-10-14 20:56:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-10-14 20:56:45,878 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:56:45,879 INFO L215 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] [2024-10-14 20:56:45,918 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 (5)] Forceful destruction successful, exit code 0 [2024-10-14 20:56:46,079 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 [2024-10-14 20:56:46,080 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:56:46,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:56:46,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1561479951, now seen corresponding path program 3 times [2024-10-14 20:56:46,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:56:46,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630565628] [2024-10-14 20:56:46,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:56:46,082 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 [2024-10-14 20:56:46,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:56:46,083 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) [2024-10-14 20:56:46,084 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 [2024-10-14 20:56:46,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 20:56:46,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:56:46,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:56:46,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:56:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3604 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 2935 trivial. 0 not checked. [2024-10-14 20:56:48,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:56:48,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:56:48,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630565628] [2024-10-14 20:56:48,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630565628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:56:48,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:56:48,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:56:48,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350655977] [2024-10-14 20:56:48,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:56:48,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:56:48,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:56:48,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:56:48,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:56:48,314 INFO L87 Difference]: Start difference. First operand 172 states and 233 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-10-14 20:56:50,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:56:50,129 INFO L93 Difference]: Finished difference Result 172 states and 233 transitions. [2024-10-14 20:56:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:56:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 275 [2024-10-14 20:56:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:56:50,142 INFO L225 Difference]: With dead ends: 172 [2024-10-14 20:56:50,142 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 20:56:50,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:56:50,149 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 66 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 [2024-10-14 20:56:50,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 66 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 20:56:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 20:56:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 20:56:50,151 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) [2024-10-14 20:56:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 20:56:50,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 275 [2024-10-14 20:56:50,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:56:50,155 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 20:56:50,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-10-14 20:56:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 20:56:50,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 20:56:50,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-14 20:56:50,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-14 20:56:50,174 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 (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:56:50,358 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 [2024-10-14 20:56:50,361 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-14 20:56:50,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 20:56:55,682 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 20:56:55,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:56:55 BoogieIcfgContainer [2024-10-14 20:56:55,701 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 20:56:55,702 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 20:56:55,702 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 20:56:55,702 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 20:56:55,703 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:55:31" (3/4) ... [2024-10-14 20:56:55,705 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 20:56:55,709 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-14 20:56:55,709 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-14 20:56:55,713 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-10-14 20:56:55,713 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 20:56:55,714 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-14 20:56:55,714 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 20:56:55,714 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 20:56:55,820 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 20:56:55,821 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 20:56:55,821 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 20:56:55,821 INFO L158 Benchmark]: Toolchain (without parser) took 90671.29ms. Allocated memory is still 75.5MB. Free memory was 41.6MB in the beginning and 31.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,822 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 50.3MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:56:55,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.11ms. Allocated memory is still 75.5MB. Free memory was 41.4MB in the beginning and 47.9MB in the end (delta: -6.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.89ms. Allocated memory is still 75.5MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,823 INFO L158 Benchmark]: Boogie Preprocessor took 67.95ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 43.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,823 INFO L158 Benchmark]: RCFGBuilder took 5536.63ms. Allocated memory is still 75.5MB. Free memory was 43.4MB in the beginning and 48.7MB in the end (delta: -5.3MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,823 INFO L158 Benchmark]: TraceAbstraction took 84583.62ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 37.3MB in the end (delta: 10.7MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,823 INFO L158 Benchmark]: Witness Printer took 118.80ms. Allocated memory is still 75.5MB. Free memory was 37.3MB in the beginning and 31.8MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-14 20:56:55,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 50.3MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.11ms. Allocated memory is still 75.5MB. Free memory was 41.4MB in the beginning and 47.9MB in the end (delta: -6.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.89ms. Allocated memory is still 75.5MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.95ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 43.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5536.63ms. Allocated memory is still 75.5MB. Free memory was 43.4MB in the beginning and 48.7MB in the end (delta: -5.3MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 84583.62ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 37.3MB in the end (delta: 10.7MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Witness Printer took 118.80ms. Allocated memory is still 75.5MB. Free memory was 37.3MB in the beginning and 31.8MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. 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, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 79.2s, OverallIterations: 5, TraceHistogramMax: 40, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 45.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357 SdHoareTripleChecker+Valid, 27.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 357 mSDsluCounter, 1135 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 941 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 537 IncrementalHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 194 mSDtfsCounter, 537 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 31.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred 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, 1.3s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 464 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 617 ConstructedInterpolants, 0 QuantifiedInterpolants, 1459 SizeOfPredicates, 14 NumberOfNonLiveVariables, 439 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) < 20) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (0 == counter) Ensures: (0 == counter) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (((counter + -1) % 4294967296) < 20) Ensures: (((counter + -1) % 4294967296) < 20) RESULT: Ultimate proved your program to be correct! [2024-10-14 20:56:56,042 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 [2024-10-14 20:56:56,094 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE