./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 791161d1 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-?-791161d [2022-07-23 01:07:56,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:07:56,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:07:56,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:07:56,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:07:56,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:07:56,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:07:56,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:07:56,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:07:56,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:07:56,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:07:56,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:07:56,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:07:56,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:07:56,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:07:56,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:07:56,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:07:56,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:07:56,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:07:56,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:07:56,945 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:07:56,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:07:56,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:07:56,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:07:56,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:07:56,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:07:56,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:07:56,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:07:56,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:07:56,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:07:56,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:07:56,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:07:56,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:07:56,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:07:56,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:07:56,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:07:56,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:07:56,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:07:56,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:07:56,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:07:56,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:07:56,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:07:56,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:07:56,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:07:56,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:07:56,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:07:56,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:07:56,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:07:56,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:07:56,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:07:56,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:07:56,993 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:07:56,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:07:56,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:07:56,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:07:56,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:07:56,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:07:56,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:07:56,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:07:56,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:07:56,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:07:56,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:07:56,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:07:56,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:07:56,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:07:56,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:07:56,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:07:56,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:07:56,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:07:56,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:07:56,997 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:07:56,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:07:56,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:07:56,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-23 01:07:57,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:07:57,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:07:57,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:07:57,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:07:57,271 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:07:57,272 INFO L432 ainManager$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 [2022-07-23 01:07:57,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee291ff34/a3e17529233f4ffba28d7d7f415d5283/FLAGe0cc3d4d4 [2022-07-23 01:07:58,233 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:07:58,234 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 [2022-07-23 01:07:58,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee291ff34/a3e17529233f4ffba28d7d7f415d5283/FLAGe0cc3d4d4 [2022-07-23 01:07:58,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee291ff34/a3e17529233f4ffba28d7d7f415d5283 [2022-07-23 01:07:58,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:07:58,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:07:58,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:07:58,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:07:58,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:07:58,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:07:58" (1/1) ... [2022-07-23 01:07:58,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae81a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:07:58, skipping insertion in model container [2022-07-23 01:07:58,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:07:58" (1/1) ... [2022-07-23 01:07:58,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:07:58,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:08:02,710 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] [2022-07-23 01:08:03,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:08:03,127 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:08:03,346 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) [2022-07-23 01:08:03,351 INFO L158 Benchmark]: Toolchain (without parser) took 4552.27ms. Allocated memory was 127.9MB in the beginning and 216.0MB in the end (delta: 88.1MB). Free memory was 93.4MB in the beginning and 137.2MB in the end (delta: -43.7MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. [2022-07-23 01:08:03,351 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 01:08:03,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4550.52ms. Allocated memory was 127.9MB in the beginning and 216.0MB in the end (delta: 88.1MB). Free memory was 93.4MB in the beginning and 137.2MB in the end (delta: -43.7MB). Peak memory consumption was 113.2MB. Max. memory is 16.1GB. [2022-07-23 01:08:03,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4550.52ms. Allocated memory was 127.9MB in the beginning and 216.0MB in the end (delta: 88.1MB). Free memory was 93.4MB in the beginning and 137.2MB in the end (delta: -43.7MB). Peak memory consumption was 113.2MB. 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-?-791161d [2022-07-23 01:08:05,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:08:05,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:08:05,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:08:05,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:08:05,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:08:05,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:08:05,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:08:05,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:08:05,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:08:05,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:08:05,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:08:05,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:08:05,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:08:05,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:08:05,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:08:05,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:08:05,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:08:05,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:08:05,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:08:05,100 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:08:05,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:08:05,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:08:05,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:08:05,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:08:05,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:08:05,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:08:05,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:08:05,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:08:05,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:08:05,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:08:05,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:08:05,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:08:05,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:08:05,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:08:05,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:08:05,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:08:05,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:08:05,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:08:05,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:08:05,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:08:05,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:08:05,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 01:08:05,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:08:05,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:08:05,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:08:05,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:08:05,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:08:05,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:08:05,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:08:05,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:08:05,166 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:08:05,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:08:05,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:08:05,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:08:05,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:08:05,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:08:05,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 01:08:05,168 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 01:08:05,168 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 01:08:05,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:08:05,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:08:05,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:08:05,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:08:05,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:08:05,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:08:05,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:08:05,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:08:05,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:08:05,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:08:05,170 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 01:08:05,170 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 01:08:05,170 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:08:05,170 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:08:05,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:08:05,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 01:08:05,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-23 01:08:05,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:08:05,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:08:05,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:08:05,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:08:05,483 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:08:05,484 INFO L432 ainManager$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 [2022-07-23 01:08:05,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7bcf7acb/d3a28b1690624e90821dba7ff8bac020/FLAGc3969ca67 [2022-07-23 01:08:06,469 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:08:06,470 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 [2022-07-23 01:08:06,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7bcf7acb/d3a28b1690624e90821dba7ff8bac020/FLAGc3969ca67 [2022-07-23 01:08:06,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7bcf7acb/d3a28b1690624e90821dba7ff8bac020 [2022-07-23 01:08:06,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:08:06,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:08:06,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:08:06,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:08:06,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:08:06,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:08:06" (1/1) ... [2022-07-23 01:08:06,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7623c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:06, skipping insertion in model container [2022-07-23 01:08:06,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:08:06" (1/1) ... [2022-07-23 01:08:06,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:08:06,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:08:10,382 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] [2022-07-23 01:08:10,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:08:10,851 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 01:08:10,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:08:11,403 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] [2022-07-23 01:08:11,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:08:11,455 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:08:11,836 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] [2022-07-23 01:08:11,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:08:12,292 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:08:12,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12 WrapperNode [2022-07-23 01:08:12,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:08:12,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:08:12,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:08:12,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:08:12,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,785 INFO L137 Inliner]: procedures = 621, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7479 [2022-07-23 01:08:12,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:08:12,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:08:12,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:08:12,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:08:12,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:12,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:13,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:13,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:08:13,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:08:13,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:08:13,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:08:13,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (1/1) ... [2022-07-23 01:08:13,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:08:13,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:08:13,140 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) [2022-07-23 01:08:13,163 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 [2022-07-23 01:08:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-23 01:08:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-23 01:08:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-23 01:08:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-23 01:08:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-07-23 01:08:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-07-23 01:08:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-23 01:08:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 01:08:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 01:08:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:08:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:08:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-23 01:08:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-23 01:08:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 01:08:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 01:08:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:08:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:08:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-23 01:08:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-23 01:08:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-23 01:08:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-23 01:08:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 01:08:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 01:08:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-23 01:08:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-23 01:08:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 01:08:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 01:08:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-23 01:08:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-23 01:08:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-23 01:08:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-23 01:08:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-23 01:08:13,185 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-23 01:08:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 01:08:13,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 01:08:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 01:08:13,185 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 01:08:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 01:08:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 01:08:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-23 01:08:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-23 01:08:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:08:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:08:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 01:08:13,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 01:08:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:08:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 01:08:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 01:08:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 01:08:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 01:08:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-23 01:08:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-23 01:08:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 01:08:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 01:08:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-23 01:08:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-23 01:08:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-23 01:08:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-23 01:08:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:08:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:08:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 01:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 01:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-23 01:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-23 01:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 01:08:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 01:08:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-23 01:08:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-23 01:08:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-23 01:08:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-23 01:08:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 01:08:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 01:08:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:08:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:08:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-23 01:08:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-23 01:08:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-07-23 01:08:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-07-23 01:08:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 01:08:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 01:08:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:08:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:08:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:08:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:08:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 01:08:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 01:08:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 01:08:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 01:08:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:08:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 01:08:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 01:08:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 01:08:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 01:08:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-23 01:08:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-23 01:08:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-23 01:08:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-23 01:08:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-23 01:08:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-23 01:08:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-23 01:08:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-23 01:08:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-23 01:08:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-23 01:08:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-23 01:08:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-23 01:08:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-23 01:08:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-23 01:08:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 01:08:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-07-23 01:08:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-07-23 01:08:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-23 01:08:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-23 01:08:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-23 01:08:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-23 01:08:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:08:13,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:08:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-23 01:08:13,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-23 01:08:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 01:08:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-23 01:08:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-23 01:08:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-23 01:08:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-23 01:08:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 01:08:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 01:08:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:08:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 01:08:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:08:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:08:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:08:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 01:08:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 01:08:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 01:08:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 01:08:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-23 01:08:13,213 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-23 01:08:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-23 01:08:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-23 01:08:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-23 01:08:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-23 01:08:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-23 01:08:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-23 01:08:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 01:08:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 01:08:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:08:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:08:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 01:08:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 01:08:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 01:08:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 01:08:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:08:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:08:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:08:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:08:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 01:08:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 01:08:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-23 01:08:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-23 01:08:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-23 01:08:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-23 01:08:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 01:08:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 01:08:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 01:08:13,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 01:08:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:08:13,217 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 01:08:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 01:08:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-23 01:08:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-23 01:08:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:08:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-23 01:08:13,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-23 01:08:13,218 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-23 01:08:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-23 01:08:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 01:08:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-23 01:08:13,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-23 01:08:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 01:08:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 01:08:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 01:08:13,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:08:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-23 01:08:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-23 01:08:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-23 01:08:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-23 01:08:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 01:08:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 01:08:13,220 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-23 01:08:13,220 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-23 01:08:13,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-23 01:08:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-23 01:08:13,221 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-23 01:08:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-23 01:08:13,221 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:08:13,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:08:13,221 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-23 01:08:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-23 01:08:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-23 01:08:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-23 01:08:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-23 01:08:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-23 01:08:13,222 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-23 01:08:13,222 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-23 01:08:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-23 01:08:13,223 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-23 01:08:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-23 01:08:13,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-23 01:08:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-23 01:08:13,223 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-23 01:08:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-07-23 01:08:13,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-07-23 01:08:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:08:13,224 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:08:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-23 01:08:13,224 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-23 01:08:13,224 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-23 01:08:13,224 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-23 01:08:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:08:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:08:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-23 01:08:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-23 01:08:13,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-23 01:08:13,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-23 01:08:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-23 01:08:13,226 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-23 01:08:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 01:08:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 01:08:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 01:08:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 01:08:13,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-23 01:08:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-23 01:08:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-23 01:08:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-23 01:08:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:08:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:08:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-23 01:08:13,227 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-23 01:08:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-23 01:08:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-23 01:08:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-23 01:08:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-23 01:08:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:08:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:08:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-23 01:08:13,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-23 01:08:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:08:13,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:08:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-23 01:08:13,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-23 01:08:13,229 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-23 01:08:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-23 01:08:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-23 01:08:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-23 01:08:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-07-23 01:08:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-07-23 01:08:13,230 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-23 01:08:13,230 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-23 01:08:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-23 01:08:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-23 01:08:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-23 01:08:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-23 01:08:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-07-23 01:08:13,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-07-23 01:08:13,231 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-23 01:08:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-23 01:08:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-23 01:08:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-23 01:08:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-23 01:08:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-23 01:08:13,232 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-23 01:08:13,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-23 01:08:14,232 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:08:14,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:08:18,145 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:09:07,200 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:09:07,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:09:07,219 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 01:09:07,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:09:07 BoogieIcfgContainer [2022-07-23 01:09:07,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:09:07,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:09:07,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:09:07,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:09:07,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:08:06" (1/3) ... [2022-07-23 01:09:07,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262511e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:09:07, skipping insertion in model container [2022-07-23 01:09:07,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:08:12" (2/3) ... [2022-07-23 01:09:07,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262511e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:09:07, skipping insertion in model container [2022-07-23 01:09:07,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:09:07" (3/3) ... [2022-07-23 01:09:07,230 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-23 01:09:07,243 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:09:07,243 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:09:07,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:09:07,337 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@72a22571, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f7dcd82 [2022-07-23 01:09:07,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:09:07,348 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) [2022-07-23 01:09:07,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 01:09:07,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:07,360 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] [2022-07-23 01:09:07,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2022-07-23 01:09:07,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:07,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887277390] [2022-07-23 01:09:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:09:07,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:07,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:07,393 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) [2022-07-23 01:09:07,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 01:09:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:09:14,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-23 01:09:14,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:09:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:09:14,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:09:14,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:09:14,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887277390] [2022-07-23 01:09:14,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887277390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:09:14,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:09:14,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:09:14,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477520246] [2022-07-23 01:09:14,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:09:14,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 01:09:14,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:09:14,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 01:09:14,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 01:09:14,447 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) [2022-07-23 01:09:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:09:14,642 INFO L93 Difference]: Finished difference Result 3917 states and 5568 transitions. [2022-07-23 01:09:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 01:09:14,644 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 [2022-07-23 01:09:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:09:14,673 INFO L225 Difference]: With dead ends: 3917 [2022-07-23 01:09:14,673 INFO L226 Difference]: Without dead ends: 1917 [2022-07-23 01:09:14,690 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 [2022-07-23 01:09:14,696 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 [2022-07-23 01:09:14,699 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] [2022-07-23 01:09:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-07-23 01:09:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2022-07-23 01:09:14,838 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) [2022-07-23 01:09:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2022-07-23 01:09:14,858 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2022-07-23 01:09:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:09:14,858 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2022-07-23 01:09:14,859 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) [2022-07-23 01:09:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2022-07-23 01:09:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 01:09:14,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:14,866 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] [2022-07-23 01:09:15,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:09:15,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:09:15,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2022-07-23 01:09:15,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:15,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651827106] [2022-07-23 01:09:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:09:15,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:15,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:15,095 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) [2022-07-23 01:09:15,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 01:09:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:09:22,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 01:09:22,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:09:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:09:22,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:09:22,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:09:22,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651827106] [2022-07-23 01:09:22,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651827106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:09:22,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:09:22,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 01:09:22,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427264432] [2022-07-23 01:09:22,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:09:22,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 01:09:22,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:09:22,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 01:09:22,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:09:22,424 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) [2022-07-23 01:09:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:09:22,942 INFO L93 Difference]: Finished difference Result 3834 states and 5289 transitions. [2022-07-23 01:09:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 01:09:22,945 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 [2022-07-23 01:09:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:09:22,958 INFO L225 Difference]: With dead ends: 3834 [2022-07-23 01:09:22,958 INFO L226 Difference]: Without dead ends: 1920 [2022-07-23 01:09:22,969 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 [2022-07-23 01:09:22,972 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 [2022-07-23 01:09:22,974 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] [2022-07-23 01:09:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-07-23 01:09:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1920. [2022-07-23 01:09:23,028 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) [2022-07-23 01:09:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2646 transitions. [2022-07-23 01:09:23,042 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2646 transitions. Word has length 52 [2022-07-23 01:09:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:09:23,043 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 2646 transitions. [2022-07-23 01:09:23,043 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) [2022-07-23 01:09:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2646 transitions. [2022-07-23 01:09:23,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 01:09:23,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:23,048 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] [2022-07-23 01:09:23,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:09:23,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:09:23,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:23,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash 601646586, now seen corresponding path program 1 times [2022-07-23 01:09:23,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:23,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377504825] [2022-07-23 01:09:23,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:09:23,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:23,273 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) [2022-07-23 01:09:23,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 01:09:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:09:30,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 5208 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 01:09:30,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:09:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:09:30,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:09:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:09:31,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:09:31,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377504825] [2022-07-23 01:09:31,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377504825] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:09:31,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:09:31,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-23 01:09:31,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973497395] [2022-07-23 01:09:31,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:09:31,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 01:09:31,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:09:31,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 01:09:31,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:09:31,816 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) [2022-07-23 01:09:32,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:09:32,709 INFO L93 Difference]: Finished difference Result 3840 states and 5297 transitions. [2022-07-23 01:09:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 01:09:32,711 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 [2022-07-23 01:09:32,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:09:32,723 INFO L225 Difference]: With dead ends: 3840 [2022-07-23 01:09:32,723 INFO L226 Difference]: Without dead ends: 1923 [2022-07-23 01:09:32,732 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 [2022-07-23 01:09:32,734 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 15 mSDsluCounter, 15787 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:09:32,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18424 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 01:09:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-23 01:09:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1921. [2022-07-23 01:09:32,780 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) [2022-07-23 01:09:32,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2648 transitions. [2022-07-23 01:09:32,798 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2648 transitions. Word has length 53 [2022-07-23 01:09:32,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:09:32,798 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 2648 transitions. [2022-07-23 01:09:32,798 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) [2022-07-23 01:09:32,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2648 transitions. [2022-07-23 01:09:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 01:09:32,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:32,800 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] [2022-07-23 01:09:33,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 01:09:33,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:09:33,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:33,020 INFO L85 PathProgramCache]: Analyzing trace with hash -62957263, now seen corresponding path program 2 times [2022-07-23 01:09:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:33,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147190964] [2022-07-23 01:09:33,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:09:33,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:33,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:33,036 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) [2022-07-23 01:09:33,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 01:09:39,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:09:39,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:09:39,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:09:39,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:09:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 01:09:39,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:09:39,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:09:39,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147190964] [2022-07-23 01:09:39,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147190964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:09:39,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:09:39,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:09:39,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116508660] [2022-07-23 01:09:39,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:09:39,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:09:39,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:09:39,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:09:39,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:09:39,989 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) [2022-07-23 01:09:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:09:40,700 INFO L93 Difference]: Finished difference Result 5716 states and 7884 transitions. [2022-07-23 01:09:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:09:40,701 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 [2022-07-23 01:09:40,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:09:40,730 INFO L225 Difference]: With dead ends: 5716 [2022-07-23 01:09:40,731 INFO L226 Difference]: Without dead ends: 3805 [2022-07-23 01:09:40,742 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 [2022-07-23 01:09:40,744 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 2590 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-23 01:09:40,745 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] [2022-07-23 01:09:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2022-07-23 01:09:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3797. [2022-07-23 01:09:40,864 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) [2022-07-23 01:09:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 5238 transitions. [2022-07-23 01:09:40,884 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 5238 transitions. Word has length 54 [2022-07-23 01:09:40,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:09:40,885 INFO L495 AbstractCegarLoop]: Abstraction has 3797 states and 5238 transitions. [2022-07-23 01:09:40,885 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) [2022-07-23 01:09:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 5238 transitions. [2022-07-23 01:09:40,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-23 01:09:40,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:40,888 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] [2022-07-23 01:09:41,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 01:09:41,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:09:41,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:41,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1975745629, now seen corresponding path program 1 times [2022-07-23 01:09:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:41,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052351842] [2022-07-23 01:09:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:09:41,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:41,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:41,118 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) [2022-07-23 01:09:41,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 01:09:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:09:48,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 5286 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:09:48,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:09:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:09:48,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:09:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-23 01:09:49,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:09:49,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052351842] [2022-07-23 01:09:49,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052351842] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:09:49,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:09:49,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-23 01:09:49,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154246968] [2022-07-23 01:09:49,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:09:49,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 01:09:49,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:09:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 01:09:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-23 01:09:49,648 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) [2022-07-23 01:09:50,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:09:50,625 INFO L93 Difference]: Finished difference Result 7604 states and 10497 transitions. [2022-07-23 01:09:50,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 01:09:50,627 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 [2022-07-23 01:09:50,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:09:50,650 INFO L225 Difference]: With dead ends: 7604 [2022-07-23 01:09:50,651 INFO L226 Difference]: Without dead ends: 3807 [2022-07-23 01:09:50,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-07-23 01:09:50,670 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 [2022-07-23 01:09:50,671 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] [2022-07-23 01:09:50,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2022-07-23 01:09:50,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3799. [2022-07-23 01:09:50,781 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) [2022-07-23 01:09:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 5242 transitions. [2022-07-23 01:09:50,803 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 5242 transitions. Word has length 75 [2022-07-23 01:09:50,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:09:50,803 INFO L495 AbstractCegarLoop]: Abstraction has 3799 states and 5242 transitions. [2022-07-23 01:09:50,803 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) [2022-07-23 01:09:50,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 5242 transitions. [2022-07-23 01:09:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-23 01:09:50,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:50,806 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] [2022-07-23 01:09:50,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 01:09:51,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:09:51,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:51,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -37348268, now seen corresponding path program 2 times [2022-07-23 01:09:51,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:51,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533577655] [2022-07-23 01:09:51,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:09:51,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:51,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:51,039 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) [2022-07-23 01:09:51,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 01:09:57,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:09:57,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:09:57,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 5145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:09:57,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:09:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-23 01:09:58,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:09:58,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:09:58,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533577655] [2022-07-23 01:09:58,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533577655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:09:58,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:09:58,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:09:58,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761902761] [2022-07-23 01:09:58,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:09:58,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:09:58,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:09:58,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:09:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:09:58,602 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) [2022-07-23 01:09:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:09:58,811 INFO L93 Difference]: Finished difference Result 11357 states and 15682 transitions. [2022-07-23 01:09:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:09:58,812 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 [2022-07-23 01:09:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:09:58,863 INFO L225 Difference]: With dead ends: 11357 [2022-07-23 01:09:58,863 INFO L226 Difference]: Without dead ends: 7568 [2022-07-23 01:09:58,886 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 [2022-07-23 01:09:58,888 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:09:58,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 5744 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:09:58,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2022-07-23 01:09:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7552. [2022-07-23 01:09:59,165 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) [2022-07-23 01:09:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 10430 transitions. [2022-07-23 01:09:59,202 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 10430 transitions. Word has length 76 [2022-07-23 01:09:59,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:09:59,204 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 10430 transitions. [2022-07-23 01:09:59,204 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) [2022-07-23 01:09:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 10430 transitions. [2022-07-23 01:09:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-23 01:09:59,207 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:09:59,207 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] [2022-07-23 01:09:59,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-23 01:09:59,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:09:59,423 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:09:59,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:09:59,424 INFO L85 PathProgramCache]: Analyzing trace with hash -525632627, now seen corresponding path program 1 times [2022-07-23 01:09:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:09:59,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245825564] [2022-07-23 01:09:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:09:59,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:09:59,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:09:59,432 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) [2022-07-23 01:09:59,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 01:10:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:10:06,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 5299 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 01:10:06,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:10:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 01:10:07,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:10:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-23 01:10:08,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:10:08,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245825564] [2022-07-23 01:10:08,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [245825564] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:10:08,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:10:08,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-23 01:10:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763827080] [2022-07-23 01:10:08,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:10:08,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 01:10:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:10:08,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 01:10:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:10:08,830 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) [2022-07-23 01:10:10,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:10:10,670 INFO L93 Difference]: Finished difference Result 15138 states and 20917 transitions. [2022-07-23 01:10:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:10:10,672 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 [2022-07-23 01:10:10,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:10:10,744 INFO L225 Difference]: With dead ends: 15138 [2022-07-23 01:10:10,745 INFO L226 Difference]: Without dead ends: 7580 [2022-07-23 01:10:10,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-23 01:10:10,783 INFO L413 NwaCegarLoop]: 2639 mSDtfsCounter, 26 mSDsluCounter, 26325 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:10:10,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28964 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-23 01:10:10,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2022-07-23 01:10:11,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7556. [2022-07-23 01:10:11,057 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) [2022-07-23 01:10:11,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 10438 transitions. [2022-07-23 01:10:11,098 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 10438 transitions. Word has length 75 [2022-07-23 01:10:11,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:10:11,098 INFO L495 AbstractCegarLoop]: Abstraction has 7556 states and 10438 transitions. [2022-07-23 01:10:11,099 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) [2022-07-23 01:10:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 10438 transitions. [2022-07-23 01:10:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-23 01:10:11,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:10:11,104 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] [2022-07-23 01:10:11,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 01:10:11,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:10:11,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:10:11,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:10:11,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1756240772, now seen corresponding path program 2 times [2022-07-23 01:10:11,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:10:11,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520451256] [2022-07-23 01:10:11,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 01:10:11,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:10:11,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:10:11,332 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) [2022-07-23 01:10:11,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 01:10:17,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 01:10:17,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 01:10:18,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:10:18,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:10:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-23 01:10:19,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:10:19,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:10:19,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520451256] [2022-07-23 01:10:19,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520451256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:10:19,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:10:19,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:10:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936150164] [2022-07-23 01:10:19,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:10:19,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:10:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:10:19,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:10:19,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:10:19,139 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) [2022-07-23 01:10:19,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:10:19,254 INFO L93 Difference]: Finished difference Result 7558 states and 10439 transitions. [2022-07-23 01:10:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:10:19,255 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 [2022-07-23 01:10:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:10:19,292 INFO L225 Difference]: With dead ends: 7558 [2022-07-23 01:10:19,292 INFO L226 Difference]: Without dead ends: 7555 [2022-07-23 01:10:19,297 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 [2022-07-23 01:10:19,298 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 [2022-07-23 01:10:19,298 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] [2022-07-23 01:10:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2022-07-23 01:10:19,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 7555. [2022-07-23 01:10:19,529 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) [2022-07-23 01:10:19,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 10435 transitions. [2022-07-23 01:10:19,564 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 10435 transitions. Word has length 76 [2022-07-23 01:10:19,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:10:19,565 INFO L495 AbstractCegarLoop]: Abstraction has 7555 states and 10435 transitions. [2022-07-23 01:10:19,565 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) [2022-07-23 01:10:19,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 10435 transitions. [2022-07-23 01:10:19,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-23 01:10:19,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:10:19,569 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] [2022-07-23 01:10:19,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 01:10:19,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:10:19,795 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:10:19,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:10:19,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1391970591, now seen corresponding path program 1 times [2022-07-23 01:10:19,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:10:19,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374916504] [2022-07-23 01:10:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:10:19,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:10:19,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:10:19,803 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) [2022-07-23 01:10:19,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 01:10:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:10:27,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 5311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:10:27,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:10:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-23 01:10:28,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:10:28,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:10:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374916504] [2022-07-23 01:10:28,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374916504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:10:28,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:10:28,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:10:28,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309347478] [2022-07-23 01:10:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:10:28,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:10:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:10:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:10:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:10:28,132 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) [2022-07-23 01:10:28,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:10:28,259 INFO L93 Difference]: Finished difference Result 7557 states and 10436 transitions. [2022-07-23 01:10:28,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:10:28,260 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 [2022-07-23 01:10:28,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:10:28,298 INFO L225 Difference]: With dead ends: 7557 [2022-07-23 01:10:28,298 INFO L226 Difference]: Without dead ends: 7554 [2022-07-23 01:10:28,302 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 [2022-07-23 01:10:28,303 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 [2022-07-23 01:10:28,303 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] [2022-07-23 01:10:28,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7554 states. [2022-07-23 01:10:28,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7554 to 7554. [2022-07-23 01:10:28,553 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) [2022-07-23 01:10:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 10432 transitions. [2022-07-23 01:10:28,587 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 10432 transitions. Word has length 77 [2022-07-23 01:10:28,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:10:28,589 INFO L495 AbstractCegarLoop]: Abstraction has 7554 states and 10432 transitions. [2022-07-23 01:10:28,589 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) [2022-07-23 01:10:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 10432 transitions. [2022-07-23 01:10:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-23 01:10:28,591 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:10:28,591 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] [2022-07-23 01:10:28,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 01:10:28,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:10:28,811 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:10:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:10:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash -202270169, now seen corresponding path program 1 times [2022-07-23 01:10:28,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:10:28,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791702146] [2022-07-23 01:10:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:10:28,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:10:28,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:10:28,821 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) [2022-07-23 01:10:28,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 01:10:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:10:36,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 5312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:10:36,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:10:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-23 01:10:37,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:10:37,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:10:37,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791702146] [2022-07-23 01:10:37,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791702146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:10:37,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:10:37,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:10:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490571597] [2022-07-23 01:10:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:10:37,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:10:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:10:37,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:10:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:10:37,233 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) [2022-07-23 01:10:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:10:37,424 INFO L93 Difference]: Finished difference Result 7570 states and 10442 transitions. [2022-07-23 01:10:37,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:10:37,425 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 [2022-07-23 01:10:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:10:37,458 INFO L225 Difference]: With dead ends: 7570 [2022-07-23 01:10:37,458 INFO L226 Difference]: Without dead ends: 7566 [2022-07-23 01:10:37,463 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 [2022-07-23 01:10:37,464 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 [2022-07-23 01:10:37,464 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] [2022-07-23 01:10:37,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2022-07-23 01:10:37,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 7564. [2022-07-23 01:10:37,700 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) [2022-07-23 01:10:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 10432 transitions. [2022-07-23 01:10:37,733 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 10432 transitions. Word has length 78 [2022-07-23 01:10:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:10:37,734 INFO L495 AbstractCegarLoop]: Abstraction has 7564 states and 10432 transitions. [2022-07-23 01:10:37,734 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) [2022-07-23 01:10:37,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 10432 transitions. [2022-07-23 01:10:37,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-23 01:10:37,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:10:37,736 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] [2022-07-23 01:10:37,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 01:10:37,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:10:37,950 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:10:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:10:37,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1976257884, now seen corresponding path program 1 times [2022-07-23 01:10:37,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:10:37,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077691960] [2022-07-23 01:10:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:10:37,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:10:37,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:10:37,958 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) [2022-07-23 01:10:37,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 01:10:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:10:45,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:10:45,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:10:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-23 01:10:46,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:10:46,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:10:46,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077691960] [2022-07-23 01:10:46,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077691960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:10:46,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:10:46,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:10:46,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428936074] [2022-07-23 01:10:46,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:10:46,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:10:46,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:10:46,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:10:46,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:10:46,453 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) [2022-07-23 01:10:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:10:46,858 INFO L93 Difference]: Finished difference Result 22624 states and 31471 transitions. [2022-07-23 01:10:46,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:10:46,859 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 [2022-07-23 01:10:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:10:46,939 INFO L225 Difference]: With dead ends: 22624 [2022-07-23 01:10:46,939 INFO L226 Difference]: Without dead ends: 15070 [2022-07-23 01:10:46,981 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 [2022-07-23 01:10:46,982 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:10:46,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 5892 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:10:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15070 states. [2022-07-23 01:10:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15070 to 15048. [2022-07-23 01:10:47,732 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) [2022-07-23 01:10:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15048 states to 15048 states and 20888 transitions. [2022-07-23 01:10:47,813 INFO L78 Accepts]: Start accepts. Automaton has 15048 states and 20888 transitions. Word has length 79 [2022-07-23 01:10:47,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:10:47,814 INFO L495 AbstractCegarLoop]: Abstraction has 15048 states and 20888 transitions. [2022-07-23 01:10:47,814 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) [2022-07-23 01:10:47,814 INFO L276 IsEmpty]: Start isEmpty. Operand 15048 states and 20888 transitions. [2022-07-23 01:10:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-23 01:10:47,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:10:47,816 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] [2022-07-23 01:10:47,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 01:10:48,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:10:48,032 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:10:48,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:10:48,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1135297334, now seen corresponding path program 1 times [2022-07-23 01:10:48,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:10:48,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196962010] [2022-07-23 01:10:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:10:48,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:10:48,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:10:48,044 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) [2022-07-23 01:10:48,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 01:10:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:10:55,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 5314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:10:55,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:10:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-23 01:10:56,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:10:56,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:10:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196962010] [2022-07-23 01:10:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196962010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:10:56,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:10:56,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:10:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487144616] [2022-07-23 01:10:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:10:56,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:10:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:10:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:10:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:10:56,311 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) [2022-07-23 01:10:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:10:56,604 INFO L93 Difference]: Finished difference Result 15050 states and 20889 transitions. [2022-07-23 01:10:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:10:56,605 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 [2022-07-23 01:10:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:10:56,660 INFO L225 Difference]: With dead ends: 15050 [2022-07-23 01:10:56,661 INFO L226 Difference]: Without dead ends: 15047 [2022-07-23 01:10:56,666 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 [2022-07-23 01:10:56,667 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 [2022-07-23 01:10:56,667 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] [2022-07-23 01:10:56,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15047 states. [2022-07-23 01:10:57,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15047 to 15047. [2022-07-23 01:10:57,165 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) [2022-07-23 01:10:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15047 states to 15047 states and 20885 transitions. [2022-07-23 01:10:57,234 INFO L78 Accepts]: Start accepts. Automaton has 15047 states and 20885 transitions. Word has length 80 [2022-07-23 01:10:57,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:10:57,234 INFO L495 AbstractCegarLoop]: Abstraction has 15047 states and 20885 transitions. [2022-07-23 01:10:57,234 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) [2022-07-23 01:10:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand 15047 states and 20885 transitions. [2022-07-23 01:10:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-23 01:10:57,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:10:57,236 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] [2022-07-23 01:10:57,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 01:10:57,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:10:57,437 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:10:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:10:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -125926547, now seen corresponding path program 1 times [2022-07-23 01:10:57,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:10:57,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838627650] [2022-07-23 01:10:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:10:57,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:10:57,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:10:57,444 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) [2022-07-23 01:10:57,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 01:11:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:11:04,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 5316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:11:04,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:11:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-23 01:11:05,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:11:05,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:11:05,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838627650] [2022-07-23 01:11:05,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838627650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:11:05,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:11:05,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 01:11:05,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054893041] [2022-07-23 01:11:05,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:11:05,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:11:05,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:11:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:11:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:11:05,633 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) [2022-07-23 01:11:05,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:11:05,894 INFO L93 Difference]: Finished difference Result 15049 states and 20886 transitions. [2022-07-23 01:11:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:11:05,894 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 [2022-07-23 01:11:05,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:11:05,954 INFO L225 Difference]: With dead ends: 15049 [2022-07-23 01:11:05,954 INFO L226 Difference]: Without dead ends: 15035 [2022-07-23 01:11:05,965 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 [2022-07-23 01:11:05,966 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 [2022-07-23 01:11:05,966 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] [2022-07-23 01:11:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-07-23 01:11:06,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 15035. [2022-07-23 01:11:06,544 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) [2022-07-23 01:11:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15035 states to 15035 states and 20869 transitions. [2022-07-23 01:11:06,620 INFO L78 Accepts]: Start accepts. Automaton has 15035 states and 20869 transitions. Word has length 82 [2022-07-23 01:11:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:11:06,620 INFO L495 AbstractCegarLoop]: Abstraction has 15035 states and 20869 transitions. [2022-07-23 01:11:06,621 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) [2022-07-23 01:11:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 15035 states and 20869 transitions. [2022-07-23 01:11:06,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 01:11:06,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:11:06,625 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] [2022-07-23 01:11:06,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 01:11:06,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:11:06,839 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:11:06,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:11:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1733469006, now seen corresponding path program 1 times [2022-07-23 01:11:06,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:11:06,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405807645] [2022-07-23 01:11:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:11:06,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:11:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:11:06,850 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) [2022-07-23 01:11:06,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 01:11:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:11:14,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 5379 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:11:14,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:11:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 01:11:14,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:11:14,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:11:14,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405807645] [2022-07-23 01:11:14,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405807645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:11:14,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:11:14,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:11:14,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911977718] [2022-07-23 01:11:14,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:11:14,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:11:14,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:11:14,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:11:14,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:11:14,694 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) [2022-07-23 01:11:15,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:11:15,764 INFO L93 Difference]: Finished difference Result 44737 states and 62121 transitions. [2022-07-23 01:11:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:11:15,765 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 [2022-07-23 01:11:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:11:15,902 INFO L225 Difference]: With dead ends: 44737 [2022-07-23 01:11:15,902 INFO L226 Difference]: Without dead ends: 29712 [2022-07-23 01:11:15,975 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 [2022-07-23 01:11:15,976 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 [2022-07-23 01:11:15,976 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] [2022-07-23 01:11:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2022-07-23 01:11:17,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 29675. [2022-07-23 01:11:17,226 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) [2022-07-23 01:11:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29675 states to 29675 states and 41219 transitions. [2022-07-23 01:11:17,374 INFO L78 Accepts]: Start accepts. Automaton has 29675 states and 41219 transitions. Word has length 103 [2022-07-23 01:11:17,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:11:17,374 INFO L495 AbstractCegarLoop]: Abstraction has 29675 states and 41219 transitions. [2022-07-23 01:11:17,374 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) [2022-07-23 01:11:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 29675 states and 41219 transitions. [2022-07-23 01:11:17,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-23 01:11:17,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:11:17,382 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] [2022-07-23 01:11:17,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 01:11:17,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:11:17,603 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:11:17,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:11:17,604 INFO L85 PathProgramCache]: Analyzing trace with hash -653991023, now seen corresponding path program 1 times [2022-07-23 01:11:17,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:11:17,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668065553] [2022-07-23 01:11:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:11:17,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:11:17,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:11:17,844 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) [2022-07-23 01:11:17,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 01:11:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:11:25,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 5502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 01:11:25,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:11:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 01:11:25,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:11:25,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:11:25,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668065553] [2022-07-23 01:11:25,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668065553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:11:25,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:11:25,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 01:11:25,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593492380] [2022-07-23 01:11:25,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:11:25,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 01:11:25,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:11:25,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 01:11:25,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 01:11:25,400 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) [2022-07-23 01:11:27,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:11:27,390 INFO L93 Difference]: Finished difference Result 80476 states and 111600 transitions. [2022-07-23 01:11:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 01:11:27,391 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 [2022-07-23 01:11:27,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:11:27,597 INFO L225 Difference]: With dead ends: 80476 [2022-07-23 01:11:27,598 INFO L226 Difference]: Without dead ends: 50811 [2022-07-23 01:11:27,676 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 [2022-07-23 01:11:27,677 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 01:11:27,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 5608 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 01:11:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50811 states. [2022-07-23 01:11:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50811 to 50751. [2022-07-23 01:11:29,475 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) [2022-07-23 01:11:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50751 states to 50751 states and 70317 transitions. [2022-07-23 01:11:29,829 INFO L78 Accepts]: Start accepts. Automaton has 50751 states and 70317 transitions. Word has length 115 [2022-07-23 01:11:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:11:29,829 INFO L495 AbstractCegarLoop]: Abstraction has 50751 states and 70317 transitions. [2022-07-23 01:11:29,830 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) [2022-07-23 01:11:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 50751 states and 70317 transitions. [2022-07-23 01:11:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-23 01:11:29,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:11:29,842 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] [2022-07-23 01:11:30,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-23 01:11:30,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:11:30,055 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:11:30,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:11:30,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1618123476, now seen corresponding path program 1 times [2022-07-23 01:11:30,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:11:30,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040005843] [2022-07-23 01:11:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:11:30,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:11:30,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:11:30,064 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) [2022-07-23 01:11:30,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 01:11:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:11:37,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 5486 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 01:11:37,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:11:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-23 01:11:37,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:11:37,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:11:37,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040005843] [2022-07-23 01:11:37,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040005843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:11:37,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:11:37,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 01:11:37,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722872000] [2022-07-23 01:11:37,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:11:37,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 01:11:37,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:11:37,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 01:11:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 01:11:37,490 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) [2022-07-23 01:11:39,541 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 [] [2022-07-23 01:11:41,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:11:41,382 INFO L93 Difference]: Finished difference Result 101620 states and 140910 transitions. [2022-07-23 01:11:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 01:11:41,383 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 [2022-07-23 01:11:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:11:41,599 INFO L225 Difference]: With dead ends: 101620 [2022-07-23 01:11:41,599 INFO L226 Difference]: Without dead ends: 50879 [2022-07-23 01:11:41,910 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 [2022-07-23 01:11:41,910 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 [2022-07-23 01:11:41,911 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] [2022-07-23 01:11:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50879 states. [2022-07-23 01:11:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50879 to 50863. [2022-07-23 01:11:43,527 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) [2022-07-23 01:11:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50863 states to 50863 states and 70461 transitions. [2022-07-23 01:11:43,773 INFO L78 Accepts]: Start accepts. Automaton has 50863 states and 70461 transitions. Word has length 139 [2022-07-23 01:11:43,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:11:43,773 INFO L495 AbstractCegarLoop]: Abstraction has 50863 states and 70461 transitions. [2022-07-23 01:11:43,774 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) [2022-07-23 01:11:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 50863 states and 70461 transitions. [2022-07-23 01:11:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-23 01:11:43,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:11:43,787 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] [2022-07-23 01:11:43,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-23 01:11:44,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 01:11:44,007 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:11:44,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:11:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1449074803, now seen corresponding path program 1 times [2022-07-23 01:11:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 01:11:44,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316320675] [2022-07-23 01:11:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:11:44,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 01:11:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 01:11:44,017 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) [2022-07-23 01:11:44,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 01:11:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:11:52,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 5838 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 01:11:52,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:11:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-23 01:11:52,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:11:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-23 01:11:52,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 01:11:52,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316320675] [2022-07-23 01:11:52,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316320675] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:11:52,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 01:11:52,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-23 01:11:52,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12914925] [2022-07-23 01:11:52,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 01:11:52,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:11:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 01:11:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:11:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:11:52,938 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) [2022-07-23 01:11:55,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:11:57,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:11:59,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:11:59,189 INFO L93 Difference]: Finished difference Result 102020 states and 141422 transitions. [2022-07-23 01:11:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 01:11:59,191 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 [2022-07-23 01:11:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:11:59,434 INFO L225 Difference]: With dead ends: 102020 [2022-07-23 01:11:59,434 INFO L226 Difference]: Without dead ends: 51167 [2022-07-23 01:11:59,751 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 [2022-07-23 01:11:59,752 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 [2022-07-23 01:11:59,752 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] [2022-07-23 01:11:59,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51167 states.