./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:25:08,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:25:08,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:25:08,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:25:08,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:25:08,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:25:08,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:25:08,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:25:08,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:25:08,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:25:08,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:25:08,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:25:08,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:25:08,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:25:08,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:25:08,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:25:08,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:25:08,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:25:08,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:25:08,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:25:08,999 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:25:09,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:25:09,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:25:09,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:25:09,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:25:09,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:25:09,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:25:09,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:25:09,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:25:09,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:25:09,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:25:09,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:25:09,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:25:09,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:25:09,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:25:09,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:25:09,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:25:09,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:25:09,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:25:09,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:25:09,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:25:09,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:25:09,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:25:09,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:25:09,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:25:09,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:25:09,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:25:09,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:25:09,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:25:09,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:25:09,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:25:09,052 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:25:09,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:25:09,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:25:09,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:25:09,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:25:09,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:25:09,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:25:09,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:25:09,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:25:09,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:25:09,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:25:09,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:25:09,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:25:09,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:25:09,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:25:09,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:25:09,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:25:09,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:25:09,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:25:09,055 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:25:09,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:25:09,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:25:09,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-21 12:25:09,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:25:09,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:25:09,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:25:09,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:25:09,342 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:25:09,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 12:25:09,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a18fb0bb/1b839592aa35454c96c18aa13d49b7aa/FLAGaa717aaee [2022-07-21 12:25:10,193 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:25:10,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 12:25:10,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a18fb0bb/1b839592aa35454c96c18aa13d49b7aa/FLAGaa717aaee [2022-07-21 12:25:10,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a18fb0bb/1b839592aa35454c96c18aa13d49b7aa [2022-07-21 12:25:10,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:25:10,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:25:10,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:25:10,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:25:10,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:25:10,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:25:10" (1/1) ... [2022-07-21 12:25:10,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f925299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:10, skipping insertion in model container [2022-07-21 12:25:10,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:25:10" (1/1) ... [2022-07-21 12:25:10,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:25:10,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:25:14,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-21 12:25:15,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:25:15,367 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:25:15,544 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) 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:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) 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) [2022-07-21 12:25:15,550 INFO L158 Benchmark]: Toolchain (without parser) took 5125.60ms. Allocated memory was 67.1MB in the beginning and 151.0MB in the end (delta: 83.9MB). Free memory was 37.5MB in the beginning and 60.9MB in the end (delta: -23.4MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2022-07-21 12:25:15,551 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 12:25:15,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5121.58ms. Allocated memory was 67.1MB in the beginning and 151.0MB in the end (delta: 83.9MB). Free memory was 37.3MB in the beginning and 60.9MB in the end (delta: -23.6MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2022-07-21 12:25:15,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5121.58ms. Allocated memory was 67.1MB in the beginning and 151.0MB in the end (delta: 83.9MB). Free memory was 37.3MB in the beginning and 60.9MB in the end (delta: -23.6MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:25:17,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:25:17,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:25:17,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:25:17,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:25:17,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:25:17,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:25:17,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:25:17,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:25:17,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:25:17,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:25:17,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:25:17,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:25:17,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:25:17,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:25:17,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:25:17,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:25:17,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:25:17,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:25:17,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:25:17,269 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:25:17,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:25:17,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:25:17,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:25:17,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:25:17,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:25:17,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:25:17,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:25:17,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:25:17,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:25:17,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:25:17,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:25:17,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:25:17,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:25:17,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:25:17,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:25:17,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:25:17,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:25:17,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:25:17,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:25:17,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:25:17,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:25:17,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 12:25:17,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:25:17,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:25:17,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:25:17,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:25:17,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:25:17,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:25:17,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:25:17,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:25:17,326 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:25:17,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:25:17,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:25:17,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:25:17,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:25:17,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:25:17,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 12:25:17,328 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 12:25:17,328 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 12:25:17,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:25:17,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:25:17,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:25:17,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:25:17,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:25:17,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:25:17,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:25:17,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:25:17,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:25:17,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:25:17,329 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 12:25:17,330 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 12:25:17,330 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:25:17,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:25:17,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:25:17,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 12:25:17,330 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-21 12:25:17,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:25:17,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:25:17,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:25:17,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:25:17,629 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:25:17,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 12:25:17,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd64d58c/49c49adad08f4813b9c4e7000f08d2bd/FLAG71ce6ed3a [2022-07-21 12:25:18,503 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:25:18,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 12:25:18,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd64d58c/49c49adad08f4813b9c4e7000f08d2bd/FLAG71ce6ed3a [2022-07-21 12:25:18,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd64d58c/49c49adad08f4813b9c4e7000f08d2bd [2022-07-21 12:25:18,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:25:18,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:25:18,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:25:18,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:25:18,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:25:18,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:25:18" (1/1) ... [2022-07-21 12:25:18,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3e458f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:18, skipping insertion in model container [2022-07-21 12:25:18,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:25:18" (1/1) ... [2022-07-21 12:25:18,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:25:19,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:25:22,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-21 12:25:23,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:25:23,423 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 12:25:23,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:25:23,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-21 12:25:23,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:25:23,932 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:25:24,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2022-07-21 12:25:24,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:25:24,619 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:25:24,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24 WrapperNode [2022-07-21 12:25:24,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:25:24,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:25:24,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:25:24,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:25:24,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:24,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,001 INFO L137 Inliner]: procedures = 621, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7479 [2022-07-21 12:25:25,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:25:25,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:25:25,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:25:25,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:25:25,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:25:25,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:25:25,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:25:25,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:25:25,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (1/1) ... [2022-07-21 12:25:25,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:25:25,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:25:25,331 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) [2022-07-21 12:25:25,349 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 [2022-07-21 12:25:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-21 12:25:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-21 12:25:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-21 12:25:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-21 12:25:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-07-21 12:25:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-07-21 12:25:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 12:25:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 12:25:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 12:25:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:25:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:25:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-21 12:25:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-21 12:25:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 12:25:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 12:25:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:25:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:25:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-21 12:25:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-21 12:25:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-21 12:25:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-21 12:25:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 12:25:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 12:25:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-21 12:25:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-21 12:25:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 12:25:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 12:25:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-21 12:25:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-21 12:25:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-21 12:25:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-21 12:25:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-21 12:25:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-21 12:25:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 12:25:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 12:25:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 12:25:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 12:25:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 12:25:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 12:25:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-21 12:25:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-21 12:25:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:25:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:25:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 12:25:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 12:25:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:25:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 12:25:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 12:25:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 12:25:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 12:25:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 12:25:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 12:25:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 12:25:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 12:25:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-21 12:25:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-21 12:25:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-21 12:25:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-21 12:25:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 12:25:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 12:25:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 12:25:25,376 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 12:25:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-21 12:25:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-21 12:25:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 12:25:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 12:25:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-21 12:25:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-21 12:25:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 12:25:25,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 12:25:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 12:25:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 12:25:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 12:25:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 12:25:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-21 12:25:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-21 12:25:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-07-21 12:25:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-07-21 12:25:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 12:25:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 12:25:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:25:25,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:25:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:25:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:25:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 12:25:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 12:25:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 12:25:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 12:25:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:25:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 12:25:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 12:25:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 12:25:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 12:25:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-21 12:25:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-21 12:25:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 12:25:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 12:25:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 12:25:25,382 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 12:25:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 12:25:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 12:25:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-21 12:25:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-21 12:25:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 12:25:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 12:25:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 12:25:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 12:25:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 12:25:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-07-21 12:25:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-07-21 12:25:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-21 12:25:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-21 12:25:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 12:25:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 12:25:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:25:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:25:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 12:25:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 12:25:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 12:25:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 12:25:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 12:25:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-21 12:25:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-21 12:25:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 12:25:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 12:25:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 12:25:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 12:25:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 12:25:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:25:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:25:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 12:25:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 12:25:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 12:25:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 12:25:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 12:25:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 12:25:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-21 12:25:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-21 12:25:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-21 12:25:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-21 12:25:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-21 12:25:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-21 12:25:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:25:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:25:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:25:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:25:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 12:25:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 12:25:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:25:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:25:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:25:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:25:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 12:25:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 12:25:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:25:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:25:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 12:25:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 12:25:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 12:25:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 12:25:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 12:25:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 12:25:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-21 12:25:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-21 12:25:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:25:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 12:25:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 12:25:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-21 12:25:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-21 12:25:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:25:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-21 12:25:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-21 12:25:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-21 12:25:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-21 12:25:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 12:25:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-21 12:25:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-21 12:25:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 12:25:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 12:25:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 12:25:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:25:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-21 12:25:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-21 12:25:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 12:25:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 12:25:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:25:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:25:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 12:25:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 12:25:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-21 12:25:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-21 12:25:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 12:25:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 12:25:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 12:25:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 12:25:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-21 12:25:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-21 12:25:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-21 12:25:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-21 12:25:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 12:25:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 12:25:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 12:25:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 12:25:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 12:25:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 12:25:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-21 12:25:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-21 12:25:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 12:25:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 12:25:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-07-21 12:25:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-07-21 12:25:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 12:25:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 12:25:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-21 12:25:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-21 12:25:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-21 12:25:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-21 12:25:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:25:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:25:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-21 12:25:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-21 12:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-21 12:25:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-21 12:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 12:25:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 12:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 12:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 12:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 12:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 12:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-21 12:25:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-21 12:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-21 12:25:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-21 12:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:25:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-21 12:25:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-21 12:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-21 12:25:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-21 12:25:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-21 12:25:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-21 12:25:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:25:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:25:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 12:25:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 12:25:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 12:25:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 12:25:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-21 12:25:25,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-21 12:25:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-21 12:25:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-21 12:25:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 12:25:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 12:25:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-07-21 12:25:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-07-21 12:25:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-21 12:25:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-21 12:25:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-21 12:25:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-21 12:25:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-21 12:25:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-21 12:25:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-07-21 12:25:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-07-21 12:25:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 12:25:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 12:25:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 12:25:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 12:25:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 12:25:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 12:25:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-21 12:25:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-21 12:25:26,175 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:25:26,178 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:25:29,442 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:26:18,767 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:26:18,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:26:18,780 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 12:26:18,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:26:18 BoogieIcfgContainer [2022-07-21 12:26:18,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:26:18,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:26:18,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:26:18,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:26:18,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:25:18" (1/3) ... [2022-07-21 12:26:18,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b742d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:26:18, skipping insertion in model container [2022-07-21 12:26:18,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:25:24" (2/3) ... [2022-07-21 12:26:18,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b742d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:26:18, skipping insertion in model container [2022-07-21 12:26:18,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:26:18" (3/3) ... [2022-07-21 12:26:18,788 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-21 12:26:18,798 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:26:18,798 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:26:18,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:26:18,856 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@fb3abe7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@771f9736 [2022-07-21 12:26:18,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:26:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) [2022-07-21 12:26:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 12:26:18,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:26:18,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:26:18,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:26:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:26:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2022-07-21 12:26:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:26:18,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154332725] [2022-07-21 12:26:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:26:18,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:26:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:26:18,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:26:18,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 12:26:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:26:26,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 12:26:26,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:26:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:26:26,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:26:26,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:26:26,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154332725] [2022-07-21 12:26:26,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154332725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:26:26,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:26:26,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:26:26,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848726365] [2022-07-21 12:26:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:26:26,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 12:26:26,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:26:26,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 12:26:26,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 12:26:26,086 INFO L87 Difference]: Start difference. First operand has 1961 states, 1362 states have (on average 1.3127753303964758) internal successors, (1788), 1402 states have internal predecessors, (1788), 479 states have call successors, (479), 119 states have call predecessors, (479), 118 states have return successors, (471), 469 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 12:26:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:26:26,249 INFO L93 Difference]: Finished difference Result 3917 states and 5568 transitions. [2022-07-21 12:26:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 12:26:26,251 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-07-21 12:26:26,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:26:26,273 INFO L225 Difference]: With dead ends: 3917 [2022-07-21 12:26:26,273 INFO L226 Difference]: Without dead ends: 1917 [2022-07-21 12:26:26,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 12:26:26,291 INFO L413 NwaCegarLoop]: 2720 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, 2720 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 [2022-07-21 12:26:26,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:26:26,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-07-21 12:26:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2022-07-21 12:26:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1328 states have (on average 1.2899096385542168) internal successors, (1713), 1358 states have internal predecessors, (1713), 471 states have call successors, (471), 118 states have call predecessors, (471), 117 states have return successors, (458), 456 states have call predecessors, (458), 458 states have call successors, (458) [2022-07-21 12:26:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2022-07-21 12:26:26,426 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2022-07-21 12:26:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:26:26,427 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2022-07-21 12:26:26,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 12:26:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2022-07-21 12:26:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 12:26:26,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:26:26,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:26:26,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 12:26:26,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:26:26,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:26:26,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:26:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2022-07-21 12:26:26,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:26:26,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202441750] [2022-07-21 12:26:26,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:26:26,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:26:26,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:26:26,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:26:26,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 12:26:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:26:33,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 12:26:33,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:26:33,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:26:33,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:26:33,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:26:33,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202441750] [2022-07-21 12:26:33,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202441750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:26:33,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:26:33,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:26:33,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987493528] [2022-07-21 12:26:33,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:26:33,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:26:33,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:26:33,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:26:33,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:26:33,325 INFO L87 Difference]: Start difference. First operand 1917 states and 2642 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 12:26:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:26:33,834 INFO L93 Difference]: Finished difference Result 3834 states and 5289 transitions. [2022-07-21 12:26:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:26:33,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-07-21 12:26:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:26:33,847 INFO L225 Difference]: With dead ends: 3834 [2022-07-21 12:26:33,847 INFO L226 Difference]: Without dead ends: 1920 [2022-07-21 12:26:33,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:26:33,856 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 6 mSDsluCounter, 10526 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13162 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:26:33,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13162 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:26:33,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-07-21 12:26:33,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1920. [2022-07-21 12:26:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1330 states have (on average 1.2902255639097744) internal successors, (1716), 1361 states have internal predecessors, (1716), 471 states have call successors, (471), 118 states have call predecessors, (471), 118 states have return successors, (459), 456 states have call predecessors, (459), 458 states have call successors, (459) [2022-07-21 12:26:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2646 transitions. [2022-07-21 12:26:34,007 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2646 transitions. Word has length 52 [2022-07-21 12:26:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:26:34,007 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 2646 transitions. [2022-07-21 12:26:34,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 12:26:34,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2646 transitions. [2022-07-21 12:26:34,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 12:26:34,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:26:34,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:26:34,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 12:26:34,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:26:34,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:26:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:26:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 601646586, now seen corresponding path program 1 times [2022-07-21 12:26:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:26:34,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529918762] [2022-07-21 12:26:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:26:34,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:26:34,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:26:34,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:26:34,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 12:26:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:26:41,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 5208 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 12:26:41,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:26:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:26:41,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:26:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:26:42,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:26:42,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529918762] [2022-07-21 12:26:42,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529918762] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:26:42,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:26:42,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-21 12:26:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509559682] [2022-07-21 12:26:42,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:26:42,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:26:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:26:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:26:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:26:42,420 INFO L87 Difference]: Start difference. First operand 1920 states and 2646 transitions. Second operand has 11 states, 9 states have (on average 5.333333333333333) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-21 12:26:43,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:26:43,176 INFO L93 Difference]: Finished difference Result 3840 states and 5297 transitions. [2022-07-21 12:26:43,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 12:26:43,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.333333333333333) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2022-07-21 12:26:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:26:43,187 INFO L225 Difference]: With dead ends: 3840 [2022-07-21 12:26:43,187 INFO L226 Difference]: Without dead ends: 1923 [2022-07-21 12:26:43,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-21 12:26:43,215 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 15 mSDsluCounter, 15787 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18424 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:26:43,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18424 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 12:26:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-21 12:26:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1921. [2022-07-21 12:26:43,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1331 states have (on average 1.2907588279489106) internal successors, (1718), 1362 states have internal predecessors, (1718), 471 states have call successors, (471), 118 states have call predecessors, (471), 118 states have return successors, (459), 456 states have call predecessors, (459), 458 states have call successors, (459) [2022-07-21 12:26:43,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2648 transitions. [2022-07-21 12:26:43,270 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2648 transitions. Word has length 53 [2022-07-21 12:26:43,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:26:43,271 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 2648 transitions. [2022-07-21 12:26:43,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.333333333333333) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-21 12:26:43,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2648 transitions. [2022-07-21 12:26:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 12:26:43,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:26:43,272 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:26:43,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 12:26:43,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:26:43,490 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:26:43,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:26:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash -62957263, now seen corresponding path program 2 times [2022-07-21 12:26:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:26:43,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097118007] [2022-07-21 12:26:43,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:26:43,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:26:43,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:26:43,498 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:26:43,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 12:26:49,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:26:49,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:26:50,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:26:50,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:26:50,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 12:26:50,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:26:50,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:26:50,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097118007] [2022-07-21 12:26:50,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097118007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:26:50,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:26:50,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:26:50,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404063576] [2022-07-21 12:26:50,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:26:50,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:26:50,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:26:50,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:26:50,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:26:50,219 INFO L87 Difference]: Start difference. First operand 1921 states and 2648 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 12:26:50,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:26:50,786 INFO L93 Difference]: Finished difference Result 5716 states and 7884 transitions. [2022-07-21 12:26:50,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:26:50,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-21 12:26:50,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:26:50,809 INFO L225 Difference]: With dead ends: 5716 [2022-07-21 12:26:50,809 INFO L226 Difference]: Without dead ends: 3805 [2022-07-21 12:26:50,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:26:50,819 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 2590 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:26:50,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 5849 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 12:26:50,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2022-07-21 12:26:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3797. [2022-07-21 12:26:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 2634 states have (on average 1.2896735003796507) internal successors, (3397), 2684 states have internal predecessors, (3397), 926 states have call successors, (926), 235 states have call predecessors, (926), 236 states have return successors, (915), 909 states have call predecessors, (915), 913 states have call successors, (915) [2022-07-21 12:26:50,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 5238 transitions. [2022-07-21 12:26:50,956 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 5238 transitions. Word has length 54 [2022-07-21 12:26:50,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:26:50,958 INFO L495 AbstractCegarLoop]: Abstraction has 3797 states and 5238 transitions. [2022-07-21 12:26:50,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 12:26:50,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 5238 transitions. [2022-07-21 12:26:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 12:26:50,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:26:50,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:26:51,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 12:26:51,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:26:51,175 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:26:51,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:26:51,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1975745629, now seen corresponding path program 1 times [2022-07-21 12:26:51,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:26:51,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773929806] [2022-07-21 12:26:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:26:51,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:26:51,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:26:51,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:26:51,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 12:26:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:26:58,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 5286 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 12:26:58,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:26:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:26:58,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:27:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 12:27:00,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:00,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773929806] [2022-07-21 12:27:00,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773929806] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:27:00,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:27:00,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-21 12:27:00,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317174437] [2022-07-21 12:27:00,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:27:00,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 12:27:00,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:00,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 12:27:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 12:27:00,084 INFO L87 Difference]: Start difference. First operand 3797 states and 5238 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-21 12:27:01,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:01,033 INFO L93 Difference]: Finished difference Result 7604 states and 10497 transitions. [2022-07-21 12:27:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 12:27:01,034 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 75 [2022-07-21 12:27:01,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:01,137 INFO L225 Difference]: With dead ends: 7604 [2022-07-21 12:27:01,137 INFO L226 Difference]: Without dead ends: 3807 [2022-07-21 12:27:01,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-07-21 12:27:01,150 INFO L413 NwaCegarLoop]: 2638 mSDtfsCounter, 25 mSDsluCounter, 10528 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 13166 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:01,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 13166 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 12:27:01,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2022-07-21 12:27:01,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3799. [2022-07-21 12:27:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 2636 states have (on average 1.2902124430955995) internal successors, (3401), 2686 states have internal predecessors, (3401), 926 states have call successors, (926), 235 states have call predecessors, (926), 236 states have return successors, (915), 909 states have call predecessors, (915), 913 states have call successors, (915) [2022-07-21 12:27:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 5242 transitions. [2022-07-21 12:27:01,265 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 5242 transitions. Word has length 75 [2022-07-21 12:27:01,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:01,265 INFO L495 AbstractCegarLoop]: Abstraction has 3799 states and 5242 transitions. [2022-07-21 12:27:01,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-21 12:27:01,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 5242 transitions. [2022-07-21 12:27:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 12:27:01,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:01,268 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:01,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 12:27:01,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:01,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:01,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash -37348268, now seen corresponding path program 2 times [2022-07-21 12:27:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:01,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314373798] [2022-07-21 12:27:01,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:27:01,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:01,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:01,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 12:27:07,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:27:07,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:27:08,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 5145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:27:08,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:27:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 12:27:08,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:27:08,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:08,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314373798] [2022-07-21 12:27:08,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314373798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:27:08,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:27:08,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:27:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124065973] [2022-07-21 12:27:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:27:08,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:27:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:27:08,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:08,923 INFO L87 Difference]: Start difference. First operand 3799 states and 5242 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 12:27:09,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:09,112 INFO L93 Difference]: Finished difference Result 11357 states and 15682 transitions. [2022-07-21 12:27:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:27:09,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 76 [2022-07-21 12:27:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:09,152 INFO L225 Difference]: With dead ends: 11357 [2022-07-21 12:27:09,153 INFO L226 Difference]: Without dead ends: 7568 [2022-07-21 12:27:09,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:09,173 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 2578 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 5744 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:09,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 5744 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:27:09,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2022-07-21 12:27:09,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7552. [2022-07-21 12:27:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7552 states, 5249 states have (on average 1.2901505048580681) internal successors, (6772), 5338 states have internal predecessors, (6772), 1832 states have call successors, (1832), 468 states have call predecessors, (1832), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-21 12:27:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 10430 transitions. [2022-07-21 12:27:09,454 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 10430 transitions. Word has length 76 [2022-07-21 12:27:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:09,454 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 10430 transitions. [2022-07-21 12:27:09,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 12:27:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 10430 transitions. [2022-07-21 12:27:09,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 12:27:09,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:09,456 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:09,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 12:27:09,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:09,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:09,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash -525632627, now seen corresponding path program 1 times [2022-07-21 12:27:09,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:09,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496366577] [2022-07-21 12:27:09,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:27:09,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:09,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:09,679 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:09,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 12:27:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:27:17,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 5299 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 12:27:17,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:27:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:27:17,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:27:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 12:27:19,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:19,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496366577] [2022-07-21 12:27:19,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496366577] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:27:19,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:27:19,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-21 12:27:19,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109402383] [2022-07-21 12:27:19,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:27:19,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 12:27:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:19,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 12:27:19,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-21 12:27:19,222 INFO L87 Difference]: Start difference. First operand 7552 states and 10430 transitions. Second operand has 15 states, 13 states have (on average 5.076923076923077) internal successors, (66), 15 states have internal predecessors, (66), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-21 12:27:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:20,832 INFO L93 Difference]: Finished difference Result 15138 states and 20917 transitions. [2022-07-21 12:27:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 12:27:20,834 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.076923076923077) internal successors, (66), 15 states have internal predecessors, (66), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2022-07-21 12:27:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:20,886 INFO L225 Difference]: With dead ends: 15138 [2022-07-21 12:27:20,886 INFO L226 Difference]: Without dead ends: 7580 [2022-07-21 12:27:20,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-21 12:27:20,917 INFO L413 NwaCegarLoop]: 2639 mSDtfsCounter, 26 mSDsluCounter, 26325 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28964 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:20,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28964 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 12:27:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2022-07-21 12:27:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7556. [2022-07-21 12:27:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7556 states, 5253 states have (on average 1.2906910336950315) internal successors, (6780), 5342 states have internal predecessors, (6780), 1832 states have call successors, (1832), 468 states have call predecessors, (1832), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-21 12:27:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 10438 transitions. [2022-07-21 12:27:21,201 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 10438 transitions. Word has length 75 [2022-07-21 12:27:21,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:21,202 INFO L495 AbstractCegarLoop]: Abstraction has 7556 states and 10438 transitions. [2022-07-21 12:27:21,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.076923076923077) internal successors, (66), 15 states have internal predecessors, (66), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-21 12:27:21,203 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 10438 transitions. [2022-07-21 12:27:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 12:27:21,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:21,206 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:21,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 12:27:21,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:21,427 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:21,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:21,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1756240772, now seen corresponding path program 2 times [2022-07-21 12:27:21,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:21,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67917618] [2022-07-21 12:27:21,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:27:21,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:21,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:21,436 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:21,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 12:27:27,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:27:27,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:27:28,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:27:28,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:27:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 12:27:29,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:27:29,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67917618] [2022-07-21 12:27:29,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67917618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:27:29,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:27:29,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:27:29,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499018516] [2022-07-21 12:27:29,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:27:29,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:27:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:27:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:29,081 INFO L87 Difference]: Start difference. First operand 7556 states and 10438 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:29,164 INFO L93 Difference]: Finished difference Result 7558 states and 10439 transitions. [2022-07-21 12:27:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:27:29,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 76 [2022-07-21 12:27:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:29,192 INFO L225 Difference]: With dead ends: 7558 [2022-07-21 12:27:29,193 INFO L226 Difference]: Without dead ends: 7555 [2022-07-21 12:27:29,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:29,197 INFO L413 NwaCegarLoop]: 2639 mSDtfsCounter, 2583 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:29,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 2639 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:27:29,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2022-07-21 12:27:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 7555. [2022-07-21 12:27:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7555 states, 5253 states have (on average 1.2903102988768322) internal successors, (6778), 5341 states have internal predecessors, (6778), 1831 states have call successors, (1831), 468 states have call predecessors, (1831), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-21 12:27:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 10435 transitions. [2022-07-21 12:27:29,443 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 10435 transitions. Word has length 76 [2022-07-21 12:27:29,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:29,444 INFO L495 AbstractCegarLoop]: Abstraction has 7555 states and 10435 transitions. [2022-07-21 12:27:29,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:29,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 10435 transitions. [2022-07-21 12:27:29,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 12:27:29,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:29,447 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:29,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 12:27:29,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:29,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1391970591, now seen corresponding path program 1 times [2022-07-21 12:27:29,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:29,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47680749] [2022-07-21 12:27:29,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:27:29,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:29,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:29,675 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:29,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 12:27:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:27:36,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 5311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:27:36,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:27:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 12:27:37,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:27:37,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47680749] [2022-07-21 12:27:37,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47680749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:27:37,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:27:37,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:27:37,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568622104] [2022-07-21 12:27:37,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:27:37,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:27:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:37,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:27:37,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:37,602 INFO L87 Difference]: Start difference. First operand 7555 states and 10435 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:37,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:37,683 INFO L93 Difference]: Finished difference Result 7557 states and 10436 transitions. [2022-07-21 12:27:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:27:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2022-07-21 12:27:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:37,739 INFO L225 Difference]: With dead ends: 7557 [2022-07-21 12:27:37,739 INFO L226 Difference]: Without dead ends: 7554 [2022-07-21 12:27:37,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:37,742 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 2580 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:37,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2580 Valid, 2637 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:27:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7554 states. [2022-07-21 12:27:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7554 to 7554. [2022-07-21 12:27:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7554 states, 5253 states have (on average 1.2899295640586332) internal successors, (6776), 5340 states have internal predecessors, (6776), 1830 states have call successors, (1830), 468 states have call predecessors, (1830), 470 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-21 12:27:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 10432 transitions. [2022-07-21 12:27:37,909 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 10432 transitions. Word has length 77 [2022-07-21 12:27:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:37,911 INFO L495 AbstractCegarLoop]: Abstraction has 7554 states and 10432 transitions. [2022-07-21 12:27:37,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:37,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 10432 transitions. [2022-07-21 12:27:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 12:27:37,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:37,912 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:38,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 12:27:38,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:38,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:38,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash -202270169, now seen corresponding path program 1 times [2022-07-21 12:27:38,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:38,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451121259] [2022-07-21 12:27:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:27:38,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:38,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:38,135 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:38,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 12:27:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:27:45,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 5312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:27:45,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:27:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 12:27:46,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:27:46,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:46,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451121259] [2022-07-21 12:27:46,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451121259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:27:46,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:27:46,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:27:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783623667] [2022-07-21 12:27:46,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:27:46,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:27:46,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:46,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:27:46,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:46,162 INFO L87 Difference]: Start difference. First operand 7554 states and 10432 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:46,303 INFO L93 Difference]: Finished difference Result 7570 states and 10442 transitions. [2022-07-21 12:27:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:27:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 78 [2022-07-21 12:27:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:46,327 INFO L225 Difference]: With dead ends: 7570 [2022-07-21 12:27:46,328 INFO L226 Difference]: Without dead ends: 7566 [2022-07-21 12:27:46,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:46,331 INFO L413 NwaCegarLoop]: 2632 mSDtfsCounter, 2548 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:46,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2548 Valid, 2658 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:27:46,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2022-07-21 12:27:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 7564. [2022-07-21 12:27:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7564 states, 5261 states have (on average 1.2883482227713363) internal successors, (6778), 5346 states have internal predecessors, (6778), 1828 states have call successors, (1828), 472 states have call predecessors, (1828), 474 states have return successors, (1826), 1809 states have call predecessors, (1826), 1818 states have call successors, (1826) [2022-07-21 12:27:46,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 10432 transitions. [2022-07-21 12:27:46,523 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 10432 transitions. Word has length 78 [2022-07-21 12:27:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:46,524 INFO L495 AbstractCegarLoop]: Abstraction has 7564 states and 10432 transitions. [2022-07-21 12:27:46,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 10432 transitions. [2022-07-21 12:27:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 12:27:46,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:46,525 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:46,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-21 12:27:46,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:46,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1976257884, now seen corresponding path program 1 times [2022-07-21 12:27:46,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:46,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954689671] [2022-07-21 12:27:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:27:46,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:46,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:46,752 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:46,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 12:27:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:27:54,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:27:54,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:27:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 12:27:54,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:27:54,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:27:54,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954689671] [2022-07-21 12:27:54,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954689671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:27:54,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:27:54,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:27:54,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682380912] [2022-07-21 12:27:54,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:27:54,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:27:54,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:27:54,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:27:54,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:54,857 INFO L87 Difference]: Start difference. First operand 7564 states and 10432 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:27:55,185 INFO L93 Difference]: Finished difference Result 22624 states and 31471 transitions. [2022-07-21 12:27:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:27:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 79 [2022-07-21 12:27:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:27:55,252 INFO L225 Difference]: With dead ends: 22624 [2022-07-21 12:27:55,252 INFO L226 Difference]: Without dead ends: 15070 [2022-07-21 12:27:55,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:27:55,282 INFO L413 NwaCegarLoop]: 3279 mSDtfsCounter, 2583 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:27:55,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 5892 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:27:55,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15070 states. [2022-07-21 12:27:55,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15070 to 15048. [2022-07-21 12:27:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15048 states, 10472 states have (on average 1.2881016042780749) internal successors, (13489), 10638 states have internal predecessors, (13489), 3633 states have call successors, (3633), 937 states have call predecessors, (3633), 942 states have return successors, (3766), 3600 states have call predecessors, (3766), 3622 states have call successors, (3766) [2022-07-21 12:27:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15048 states to 15048 states and 20888 transitions. [2022-07-21 12:27:55,750 INFO L78 Accepts]: Start accepts. Automaton has 15048 states and 20888 transitions. Word has length 79 [2022-07-21 12:27:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:27:55,750 INFO L495 AbstractCegarLoop]: Abstraction has 15048 states and 20888 transitions. [2022-07-21 12:27:55,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:27:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15048 states and 20888 transitions. [2022-07-21 12:27:55,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 12:27:55,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:27:55,752 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:27:55,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 12:27:55,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:27:55,967 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:27:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:27:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1135297334, now seen corresponding path program 1 times [2022-07-21 12:27:55,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:27:55,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228261010] [2022-07-21 12:27:55,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:27:55,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:27:55,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:27:55,976 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:27:55,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 12:28:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:28:03,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 5314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:28:03,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:28:04,136 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 12:28:04,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:28:04,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:28:04,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228261010] [2022-07-21 12:28:04,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228261010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:28:04,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:28:04,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:28:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461336044] [2022-07-21 12:28:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:28:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:28:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:28:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:28:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:04,137 INFO L87 Difference]: Start difference. First operand 15048 states and 20888 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:28:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:28:04,377 INFO L93 Difference]: Finished difference Result 15050 states and 20889 transitions. [2022-07-21 12:28:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:28:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 80 [2022-07-21 12:28:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:28:04,435 INFO L225 Difference]: With dead ends: 15050 [2022-07-21 12:28:04,436 INFO L226 Difference]: Without dead ends: 15047 [2022-07-21 12:28:04,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:04,448 INFO L413 NwaCegarLoop]: 2631 mSDtfsCounter, 2571 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:28:04,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 2631 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:28:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15047 states. [2022-07-21 12:28:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15047 to 15047. [2022-07-21 12:28:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15047 states, 10472 states have (on average 1.2879106187929716) internal successors, (13487), 10637 states have internal predecessors, (13487), 3632 states have call successors, (3632), 937 states have call predecessors, (3632), 942 states have return successors, (3766), 3600 states have call predecessors, (3766), 3622 states have call successors, (3766) [2022-07-21 12:28:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15047 states to 15047 states and 20885 transitions. [2022-07-21 12:28:04,918 INFO L78 Accepts]: Start accepts. Automaton has 15047 states and 20885 transitions. Word has length 80 [2022-07-21 12:28:04,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:28:04,918 INFO L495 AbstractCegarLoop]: Abstraction has 15047 states and 20885 transitions. [2022-07-21 12:28:04,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:28:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 15047 states and 20885 transitions. [2022-07-21 12:28:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 12:28:04,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:28:04,920 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:28:05,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 12:28:05,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:28:05,135 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:28:05,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:28:05,136 INFO L85 PathProgramCache]: Analyzing trace with hash -125926547, now seen corresponding path program 1 times [2022-07-21 12:28:05,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:28:05,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759885328] [2022-07-21 12:28:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:28:05,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:28:05,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:28:05,143 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:28:05,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 12:28:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:28:12,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 5316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:28:12,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:28:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 12:28:13,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:28:13,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:28:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759885328] [2022-07-21 12:28:13,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759885328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:28:13,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:28:13,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 12:28:13,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526662526] [2022-07-21 12:28:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:28:13,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:28:13,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:28:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:28:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:13,271 INFO L87 Difference]: Start difference. First operand 15047 states and 20885 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:28:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:28:13,463 INFO L93 Difference]: Finished difference Result 15049 states and 20886 transitions. [2022-07-21 12:28:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:28:13,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 82 [2022-07-21 12:28:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:28:13,514 INFO L225 Difference]: With dead ends: 15049 [2022-07-21 12:28:13,514 INFO L226 Difference]: Without dead ends: 15035 [2022-07-21 12:28:13,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:13,526 INFO L413 NwaCegarLoop]: 2630 mSDtfsCounter, 2567 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 2630 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 [2022-07-21 12:28:13,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:28:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-07-21 12:28:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 15035. [2022-07-21 12:28:13,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15035 states, 10461 states have (on average 1.2878309913010229) internal successors, (13472), 10625 states have internal predecessors, (13472), 3631 states have call successors, (3631), 937 states have call predecessors, (3631), 942 states have return successors, (3766), 3600 states have call predecessors, (3766), 3622 states have call successors, (3766) [2022-07-21 12:28:14,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15035 states to 15035 states and 20869 transitions. [2022-07-21 12:28:14,058 INFO L78 Accepts]: Start accepts. Automaton has 15035 states and 20869 transitions. Word has length 82 [2022-07-21 12:28:14,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:28:14,058 INFO L495 AbstractCegarLoop]: Abstraction has 15035 states and 20869 transitions. [2022-07-21 12:28:14,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 12:28:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 15035 states and 20869 transitions. [2022-07-21 12:28:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 12:28:14,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:28:14,061 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:28:14,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 12:28:14,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:28:14,279 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:28:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:28:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1733469006, now seen corresponding path program 1 times [2022-07-21 12:28:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:28:14,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405400824] [2022-07-21 12:28:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:28:14,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:28:14,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:28:14,288 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:28:14,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 12:28:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:28:21,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 5379 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:28:21,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:28:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 12:28:21,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:28:21,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:28:21,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405400824] [2022-07-21 12:28:21,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405400824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:28:21,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:28:21,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:28:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646804298] [2022-07-21 12:28:21,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:28:21,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:28:21,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:28:21,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:28:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:21,767 INFO L87 Difference]: Start difference. First operand 15035 states and 20869 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 12:28:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:28:22,971 INFO L93 Difference]: Finished difference Result 44737 states and 62121 transitions. [2022-07-21 12:28:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:28:22,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-21 12:28:22,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:28:23,143 INFO L225 Difference]: With dead ends: 44737 [2022-07-21 12:28:23,144 INFO L226 Difference]: Without dead ends: 29712 [2022-07-21 12:28:23,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:23,190 INFO L413 NwaCegarLoop]: 3090 mSDtfsCounter, 2552 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2552 SdHoareTripleChecker+Valid, 5701 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:28:23,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2552 Valid, 5701 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 12:28:23,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2022-07-21 12:28:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 29675. [2022-07-21 12:28:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29675 states, 20637 states have (on average 1.2888501235644716) internal successors, (26598), 20957 states have internal predecessors, (26598), 7175 states have call successors, (7175), 1849 states have call predecessors, (7175), 1862 states have return successors, (7446), 7124 states have call predecessors, (7446), 7166 states have call successors, (7446) [2022-07-21 12:28:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29675 states to 29675 states and 41219 transitions. [2022-07-21 12:28:24,250 INFO L78 Accepts]: Start accepts. Automaton has 29675 states and 41219 transitions. Word has length 103 [2022-07-21 12:28:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:28:24,250 INFO L495 AbstractCegarLoop]: Abstraction has 29675 states and 41219 transitions. [2022-07-21 12:28:24,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 12:28:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 29675 states and 41219 transitions. [2022-07-21 12:28:24,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 12:28:24,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:28:24,258 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:28:24,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-21 12:28:24,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:28:24,471 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:28:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:28:24,472 INFO L85 PathProgramCache]: Analyzing trace with hash -653991023, now seen corresponding path program 1 times [2022-07-21 12:28:24,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:28:24,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753600181] [2022-07-21 12:28:24,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:28:24,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:28:24,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:28:24,479 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:28:24,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 12:28:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:28:32,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 5502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:28:32,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:28:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 12:28:32,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:28:32,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:28:32,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753600181] [2022-07-21 12:28:32,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753600181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:28:32,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:28:32,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:28:32,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103653025] [2022-07-21 12:28:32,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:28:32,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:28:32,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:28:32,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:28:32,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:32,142 INFO L87 Difference]: Start difference. First operand 29675 states and 41219 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 12:28:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:28:34,117 INFO L93 Difference]: Finished difference Result 80476 states and 111600 transitions. [2022-07-21 12:28:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:28:34,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2022-07-21 12:28:34,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:28:34,333 INFO L225 Difference]: With dead ends: 80476 [2022-07-21 12:28:34,333 INFO L226 Difference]: Without dead ends: 50811 [2022-07-21 12:28:34,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:28:34,437 INFO L413 NwaCegarLoop]: 3045 mSDtfsCounter, 1863 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:28:34,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 5608 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 12:28:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50811 states. [2022-07-21 12:28:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50811 to 50751. [2022-07-21 12:28:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50751 states, 35293 states have (on average 1.2897741761822459) internal successors, (45520), 35897 states have internal predecessors, (45520), 12155 states have call successors, (12155), 3273 states have call predecessors, (12155), 3302 states have return successors, (12642), 12060 states have call predecessors, (12642), 12146 states have call successors, (12642) [2022-07-21 12:28:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50751 states to 50751 states and 70317 transitions. [2022-07-21 12:28:36,262 INFO L78 Accepts]: Start accepts. Automaton has 50751 states and 70317 transitions. Word has length 115 [2022-07-21 12:28:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:28:36,262 INFO L495 AbstractCegarLoop]: Abstraction has 50751 states and 70317 transitions. [2022-07-21 12:28:36,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 12:28:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 50751 states and 70317 transitions. [2022-07-21 12:28:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-21 12:28:36,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:28:36,272 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:28:36,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-21 12:28:36,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:28:36,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:28:36,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:28:36,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1618123476, now seen corresponding path program 1 times [2022-07-21 12:28:36,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:28:36,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641504968] [2022-07-21 12:28:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:28:36,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:28:36,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:28:36,641 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:28:36,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 12:28:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:28:44,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 5486 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:28:44,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:28:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-21 12:28:44,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:28:44,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:28:44,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641504968] [2022-07-21 12:28:44,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641504968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:28:44,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:28:44,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:28:44,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593798687] [2022-07-21 12:28:44,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:28:44,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 12:28:44,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:28:44,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 12:28:44,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 12:28:44,520 INFO L87 Difference]: Start difference. First operand 50751 states and 70317 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 12:28:46,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:28:48,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:28:48,279 INFO L93 Difference]: Finished difference Result 101620 states and 140910 transitions. [2022-07-21 12:28:48,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 12:28:48,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 139 [2022-07-21 12:28:48,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:28:48,672 INFO L225 Difference]: With dead ends: 101620 [2022-07-21 12:28:48,672 INFO L226 Difference]: Without dead ends: 50879 [2022-07-21 12:28:48,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:28:48,823 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 3 mSDsluCounter, 5246 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7871 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:28:48,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 12:28:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50879 states. [2022-07-21 12:28:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50879 to 50863. [2022-07-21 12:28:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50863 states, 35381 states have (on average 1.289957887001498) internal successors, (45640), 36009 states have internal predecessors, (45640), 12155 states have call successors, (12155), 3273 states have call predecessors, (12155), 3326 states have return successors, (12666), 12060 states have call predecessors, (12666), 12146 states have call successors, (12666) [2022-07-21 12:28:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50863 states to 50863 states and 70461 transitions. [2022-07-21 12:28:50,783 INFO L78 Accepts]: Start accepts. Automaton has 50863 states and 70461 transitions. Word has length 139 [2022-07-21 12:28:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:28:50,784 INFO L495 AbstractCegarLoop]: Abstraction has 50863 states and 70461 transitions. [2022-07-21 12:28:50,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 12:28:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 50863 states and 70461 transitions. [2022-07-21 12:28:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 12:28:50,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:28:50,794 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:28:50,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-21 12:28:51,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:28:51,007 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:28:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:28:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1449074803, now seen corresponding path program 1 times [2022-07-21 12:28:51,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:28:51,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494884908] [2022-07-21 12:28:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:28:51,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:28:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:28:51,015 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:28:51,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 12:28:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:28:59,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 5840 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:28:59,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:28:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-21 12:28:59,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:29:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-21 12:29:00,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:29:00,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494884908] [2022-07-21 12:29:00,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494884908] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:29:00,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:29:00,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-21 12:29:00,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426250723] [2022-07-21 12:29:00,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:29:00,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 12:29:00,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:29:00,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 12:29:00,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:29:00,205 INFO L87 Difference]: Start difference. First operand 50863 states and 70461 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 12:29:02,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:29:04,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:29:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:29:06,438 INFO L93 Difference]: Finished difference Result 102020 states and 141422 transitions. [2022-07-21 12:29:06,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 12:29:06,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2022-07-21 12:29:06,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:29:06,848 INFO L225 Difference]: With dead ends: 102020 [2022-07-21 12:29:06,848 INFO L226 Difference]: Without dead ends: 51167 [2022-07-21 12:29:06,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:29:06,975 INFO L413 NwaCegarLoop]: 2624 mSDtfsCounter, 17 mSDsluCounter, 13104 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 15728 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:29:06,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 15728 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-07-21 12:29:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51167 states. [2022-07-21 12:29:08,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51167 to 50951. [2022-07-21 12:29:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50951 states, 35461 states have (on average 1.2913341417331716) internal successors, (45792), 36097 states have internal predecessors, (45792), 12155 states have call successors, (12155), 3273 states have call predecessors, (12155), 3334 states have return successors, (12682), 12060 states have call predecessors, (12682), 12146 states have call successors, (12682) [2022-07-21 12:29:08,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50951 states to 50951 states and 70629 transitions. [2022-07-21 12:29:08,620 INFO L78 Accepts]: Start accepts. Automaton has 50951 states and 70629 transitions. Word has length 140 [2022-07-21 12:29:08,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:29:08,621 INFO L495 AbstractCegarLoop]: Abstraction has 50951 states and 70629 transitions. [2022-07-21 12:29:08,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 12:29:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 50951 states and 70629 transitions. [2022-07-21 12:29:08,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 12:29:08,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:29:08,631 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:29:08,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-21 12:29:08,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:29:08,859 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:29:08,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:29:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1256515731, now seen corresponding path program 2 times [2022-07-21 12:29:08,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:29:08,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267956523] [2022-07-21 12:29:08,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:29:08,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:29:08,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:29:08,867 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:29:08,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-21 12:29:15,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:29:15,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:29:16,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 5216 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:29:16,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:29:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-21 12:29:16,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:29:16,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:29:16,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267956523] [2022-07-21 12:29:16,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267956523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:29:16,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:29:16,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:29:16,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652078310] [2022-07-21 12:29:16,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:29:16,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:29:16,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:29:16,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:29:16,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:29:16,562 INFO L87 Difference]: Start difference. First operand 50951 states and 70629 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 12:29:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:29:18,652 INFO L93 Difference]: Finished difference Result 101902 states and 141255 transitions. [2022-07-21 12:29:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:29:18,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 142 [2022-07-21 12:29:18,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:29:18,855 INFO L225 Difference]: With dead ends: 101902 [2022-07-21 12:29:18,855 INFO L226 Difference]: Without dead ends: 50961 [2022-07-21 12:29:19,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:29:19,124 INFO L413 NwaCegarLoop]: 5176 mSDtfsCounter, 2583 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:29:19,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 7793 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 12:29:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50961 states. [2022-07-21 12:29:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50961 to 50888. [2022-07-21 12:29:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50888 states, 35419 states have (on average 1.291227872046077) internal successors, (45734), 36062 states have internal predecessors, (45734), 12141 states have call successors, (12141), 3259 states have call predecessors, (12141), 3327 states have return successors, (12659), 12046 states have call predecessors, (12659), 12131 states have call successors, (12659) [2022-07-21 12:29:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50888 states to 50888 states and 70534 transitions. [2022-07-21 12:29:20,735 INFO L78 Accepts]: Start accepts. Automaton has 50888 states and 70534 transitions. Word has length 142 [2022-07-21 12:29:20,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:29:20,736 INFO L495 AbstractCegarLoop]: Abstraction has 50888 states and 70534 transitions. [2022-07-21 12:29:20,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 12:29:20,736 INFO L276 IsEmpty]: Start isEmpty. Operand 50888 states and 70534 transitions. [2022-07-21 12:29:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 12:29:20,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:29:20,745 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:29:20,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-21 12:29:20,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:29:20,963 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:29:20,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:29:20,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1225495924, now seen corresponding path program 1 times [2022-07-21 12:29:20,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:29:20,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633174103] [2022-07-21 12:29:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:29:20,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:29:20,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:29:20,971 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 12:29:20,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process