./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 00:22:28,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 00:22:28,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 00:22:28,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 00:22:28,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 00:22:28,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 00:22:28,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 00:22:28,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 00:22:28,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 00:22:29,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 00:22:29,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 00:22:29,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 00:22:29,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 00:22:29,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 00:22:29,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 00:22:29,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 00:22:29,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 00:22:29,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 00:22:29,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 00:22:29,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 00:22:29,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 00:22:29,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 00:22:29,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 00:22:29,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 00:22:29,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 00:22:29,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 00:22:29,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 00:22:29,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 00:22:29,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 00:22:29,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 00:22:29,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 00:22:29,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 00:22:29,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 00:22:29,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 00:22:29,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 00:22:29,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 00:22:29,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 00:22:29,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 00:22:29,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 00:22:29,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 00:22:29,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 00:22:29,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 00:22:29,060 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 00:22:29,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 00:22:29,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 00:22:29,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 00:22:29,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 00:22:29,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 00:22:29,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 00:22:29,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 00:22:29,062 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 00:22:29,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 00:22:29,063 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 00:22:29,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 00:22:29,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 00:22:29,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 00:22:29,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 00:22:29,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 00:22:29,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 00:22:29,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 00:22:29,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 00:22:29,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 00:22:29,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 00:22:29,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 00:22:29,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 00:22:29,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 00:22:29,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 00:22:29,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 00:22:29,066 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 00:22:29,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 00:22:29,066 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 00:22:29,066 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 [2023-02-15 00:22:29,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 00:22:29,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 00:22:29,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 00:22:29,272 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 00:22:29,272 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 00:22:29,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2023-02-15 00:22:30,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 00:22:30,356 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 00:22:30,356 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2023-02-15 00:22:30,367 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c9b5702/d3cd37fe75714117a0f5ef6d637ce554/FLAG6e5b5dc33 [2023-02-15 00:22:30,376 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c9b5702/d3cd37fe75714117a0f5ef6d637ce554 [2023-02-15 00:22:30,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 00:22:30,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 00:22:30,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 00:22:30,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 00:22:30,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 00:22:30,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:22:30" (1/1) ... [2023-02-15 00:22:30,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2441a38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:30, skipping insertion in model container [2023-02-15 00:22:30,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:22:30" (1/1) ... [2023-02-15 00:22:30,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 00:22:30,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 00:22:30,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2023-02-15 00:22:30,499 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:806) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2063) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1420) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1094) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1496) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3320) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2395) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2023-02-15 00:22:30,502 INFO L158 Benchmark]: Toolchain (without parser) took 122.86ms. Allocated memory is still 134.2MB. Free memory was 87.8MB in the beginning and 78.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 00:22:30,503 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory was 107.2MB in the beginning and 107.1MB in the end (delta: 95.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 00:22:30,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 121.21ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 79.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 00:22:30,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory was 107.2MB in the beginning and 107.1MB in the end (delta: 95.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 121.21ms. Allocated memory is still 134.2MB. Free memory was 87.5MB in the beginning and 79.0MB in the end (delta: 8.4MB). 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:806) 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: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 00:22:32,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 00:22:32,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 00:22:32,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 00:22:32,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 00:22:32,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 00:22:32,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 00:22:32,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 00:22:32,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 00:22:32,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 00:22:32,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 00:22:32,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 00:22:32,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 00:22:32,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 00:22:32,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 00:22:32,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 00:22:32,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 00:22:32,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 00:22:32,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 00:22:32,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 00:22:32,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 00:22:32,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 00:22:32,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 00:22:32,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 00:22:32,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 00:22:32,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 00:22:32,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 00:22:32,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 00:22:32,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 00:22:32,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 00:22:32,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 00:22:32,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 00:22:32,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 00:22:32,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 00:22:32,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 00:22:32,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 00:22:32,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 00:22:32,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 00:22:32,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 00:22:32,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 00:22:32,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 00:22:32,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-02-15 00:22:32,160 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 00:22:32,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 00:22:32,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 00:22:32,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 00:22:32,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 00:22:32,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 00:22:32,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 00:22:32,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 00:22:32,164 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 00:22:32,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 00:22:32,164 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 00:22:32,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 00:22:32,165 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 00:22:32,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 00:22:32,166 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 00:22:32,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 00:22:32,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 00:22:32,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 00:22:32,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 00:22:32,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 00:22:32,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 00:22:32,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 00:22:32,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 00:22:32,167 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 00:22:32,167 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 00:22:32,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 00:22:32,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 00:22:32,168 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 00:22:32,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 00:22:32,168 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 00:22:32,168 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 00:22:32,168 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 [2023-02-15 00:22:32,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 00:22:32,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 00:22:32,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 00:22:32,434 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 00:22:32,434 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 00:22:32,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2023-02-15 00:22:33,473 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 00:22:33,644 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 00:22:33,644 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2023-02-15 00:22:33,648 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e35509/62cdc69ae332409eab1ef8c0f1692a99/FLAG8ce3741a7 [2023-02-15 00:22:33,660 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e35509/62cdc69ae332409eab1ef8c0f1692a99 [2023-02-15 00:22:33,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 00:22:33,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 00:22:33,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 00:22:33,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 00:22:33,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 00:22:33,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0e4019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33, skipping insertion in model container [2023-02-15 00:22:33,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 00:22:33,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 00:22:33,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2023-02-15 00:22:33,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 00:22:33,830 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 00:22:33,840 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2023-02-15 00:22:33,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 00:22:33,859 INFO L208 MainTranslator]: Completed translation [2023-02-15 00:22:33,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33 WrapperNode [2023-02-15 00:22:33,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 00:22:33,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 00:22:33,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 00:22:33,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 00:22:33,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,903 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-02-15 00:22:33,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 00:22:33,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 00:22:33,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 00:22:33,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 00:22:33,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,943 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 00:22:33,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 00:22:33,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 00:22:33,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 00:22:33,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (1/1) ... [2023-02-15 00:22:33,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 00:22:33,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 00:22:33,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 00:22:34,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 00:22:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 00:22:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-15 00:22:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-15 00:22:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-15 00:22:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 00:22:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 00:22:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 00:22:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 00:22:34,103 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 00:22:34,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 00:22:37,131 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 00:22:37,134 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 00:22:37,135 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 00:22:37,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:22:37 BoogieIcfgContainer [2023-02-15 00:22:37,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 00:22:37,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 00:22:37,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 00:22:37,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 00:22:37,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:22:33" (1/3) ... [2023-02-15 00:22:37,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28514048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:22:37, skipping insertion in model container [2023-02-15 00:22:37,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:22:33" (2/3) ... [2023-02-15 00:22:37,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28514048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:22:37, skipping insertion in model container [2023-02-15 00:22:37,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:22:37" (3/3) ... [2023-02-15 00:22:37,143 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_valuebound50.i [2023-02-15 00:22:37,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 00:22:37,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 00:22:37,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 00:22:37,201 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@a2fe41e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 00:22:37,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 00:22:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 00:22:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 00:22:37,212 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 00:22:37,212 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 00:22:37,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 00:22:37,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 00:22:37,225 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2023-02-15 00:22:37,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 00:22:37,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092851128] [2023-02-15 00:22:37,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:22:37,236 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 [2023-02-15 00:22:37,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 00:22:37,239 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) [2023-02-15 00:22:37,240 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 [2023-02-15 00:22:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 00:22:37,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 00:22:37,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 00:22:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-15 00:22:37,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 00:22:37,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 00:22:37,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092851128] [2023-02-15 00:22:37,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092851128] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 00:22:37,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 00:22:37,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 00:22:37,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46855455] [2023-02-15 00:22:37,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 00:22:37,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 00:22:37,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 00:22:37,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 00:22:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 00:22:37,565 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 00:22:37,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 00:22:37,580 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2023-02-15 00:22:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 00:22:37,581 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2023-02-15 00:22:37,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 00:22:37,586 INFO L225 Difference]: With dead ends: 59 [2023-02-15 00:22:37,587 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 00:22:37,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 00:22:37,591 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 00:22:37,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 00:22:37,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 00:22:37,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-15 00:22:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 00:22:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2023-02-15 00:22:37,623 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2023-02-15 00:22:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 00:22:37,623 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-02-15 00:22:37,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 00:22:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-02-15 00:22:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 00:22:37,626 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 00:22:37,626 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 00:22:37,640 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 (2)] Forceful destruction successful, exit code 0 [2023-02-15 00:22:37,828 WARN L477 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 [2023-02-15 00:22:37,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 00:22:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 00:22:37,829 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2023-02-15 00:22:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 00:22:37,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553661973] [2023-02-15 00:22:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:22:37,830 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 [2023-02-15 00:22:37,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 00:22:37,831 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) [2023-02-15 00:22:37,834 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 [2023-02-15 00:22:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 00:22:49,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-15 00:22:49,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 00:23:30,005 WARN L233 SmtUtils]: Spent 10.70s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 00:23:57,678 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 00:24:12,307 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0)) (.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse1))) (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|) (_ bv4 32)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvadd (bvmul (_ bv8 32) .cse3) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)))) is different from false [2023-02-15 00:24:14,325 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0)) (.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse1))) (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|) (_ bv4 32)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvadd (bvmul (_ bv8 32) .cse3) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)))) is different from true [2023-02-15 00:24:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 00:24:14,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 00:24:33,491 WARN L859 $PredicateComparison]: unable to prove that (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2)) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse3))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse0))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) is different from true [2023-02-15 00:24:42,848 WARN L859 $PredicateComparison]: unable to prove that (or (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2)) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse3))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse0))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)))) is different from true [2023-02-15 00:24:55,685 WARN L859 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|) (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvmul (_ bv4 32) .cse0))) (bvmul (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse2)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul (_ bv8 32) .cse2)))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))))) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-02-15 00:25:14,862 WARN L859 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|) (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvmul (_ bv4 32) .cse0))) (bvmul (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse2)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul (_ bv8 32) .cse2)))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))))) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2023-02-15 00:25:41,939 WARN L859 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32))) (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse3 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse3)) (.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)))) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse1)) (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse3))))))))) is different from true [2023-02-15 00:25:41,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 00:25:41,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553661973] [2023-02-15 00:25:41,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553661973] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 00:25:41,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [657006809] [2023-02-15 00:25:41,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 00:25:41,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-15 00:25:41,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-15 00:25:41,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-15 00:25:41,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-02-15 00:26:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 00:26:16,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 00:26:16,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 00:27:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 00:27:09,209 INFO L328 TraceCheckSpWp]: Computing backward predicates...