./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 eb692b52 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-?-eb692b5 [2022-07-20 00:54:06,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:54:06,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:54:06,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:54:06,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:54:06,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:54:06,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:54:06,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:54:06,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:54:06,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:54:06,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:54:06,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:54:06,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:54:06,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:54:06,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:54:06,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:54:06,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:54:06,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:54:06,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:54:06,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:54:06,891 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:54:06,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:54:06,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:54:06,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:54:06,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:54:06,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:54:06,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:54:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:54:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:54:06,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:54:06,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:54:06,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:54:06,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:54:06,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:54:06,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:54:06,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:54:06,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:54:06,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:54:06,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:54:06,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:54:06,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:54:06,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:54:06,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:54:06,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:54:06,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:54:06,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:54:06,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:54:06,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:54:06,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:54:06,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:54:06,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:54:06,951 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:54:06,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:54:06,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:54:06,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:54:06,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:54:06,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:54:06,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:54:06,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:54:06,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:54:06,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:54:06,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:54:06,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:54:06,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:54:06,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:54:06,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:54:06,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:54:06,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:54:06,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:54:06,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:54:06,956 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:54:06,956 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:54:06,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:54:06,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-20 00:54:07,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:54:07,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:54:07,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:54:07,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:54:07,238 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:54:07,239 INFO L432 ainManager$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 [2022-07-20 00:54:07,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b3d519f/ff69b5571b2043c4ba1457b3310c7feb/FLAGeacd8c7a0 [2022-07-20 00:54:08,247 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:54:08,248 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 [2022-07-20 00:54:08,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b3d519f/ff69b5571b2043c4ba1457b3310c7feb/FLAGeacd8c7a0 [2022-07-20 00:54:08,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b3d519f/ff69b5571b2043c4ba1457b3310c7feb [2022-07-20 00:54:08,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:54:08,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:54:08,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:54:08,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:54:08,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:54:08,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:54:08" (1/1) ... [2022-07-20 00:54:08,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c459150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:08, skipping insertion in model container [2022-07-20 00:54:08,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:54:08" (1/1) ... [2022-07-20 00:54:08,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:54:08,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:54:14,241 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] [2022-07-20 00:54:14,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:54:15,052 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:54:15,320 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) [2022-07-20 00:54:15,327 INFO L158 Benchmark]: Toolchain (without parser) took 6701.17ms. Allocated memory was 125.8MB in the beginning and 205.5MB in the end (delta: 79.7MB). Free memory was 89.5MB in the beginning and 118.3MB in the end (delta: -28.8MB). Peak memory consumption was 107.6MB. Max. memory is 16.1GB. [2022-07-20 00:54:15,328 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 00:54:15,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6697.66ms. Allocated memory was 125.8MB in the beginning and 205.5MB in the end (delta: 79.7MB). Free memory was 89.5MB in the beginning and 118.3MB in the end (delta: -28.8MB). Peak memory consumption was 107.6MB. Max. memory is 16.1GB. [2022-07-20 00:54:15,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6697.66ms. Allocated memory was 125.8MB in the beginning and 205.5MB in the end (delta: 79.7MB). Free memory was 89.5MB in the beginning and 118.3MB in the end (delta: -28.8MB). Peak memory consumption was 107.6MB. 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-?-eb692b5 [2022-07-20 00:54:17,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:54:17,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:54:17,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:54:17,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:54:17,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:54:17,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:54:17,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:54:17,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:54:17,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:54:17,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:54:17,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:54:17,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:54:17,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:54:17,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:54:17,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:54:17,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:54:17,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:54:17,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:54:17,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:54:17,399 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:54:17,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:54:17,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:54:17,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:54:17,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:54:17,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:54:17,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:54:17,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:54:17,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:54:17,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:54:17,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:54:17,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:54:17,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:54:17,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:54:17,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:54:17,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:54:17,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:54:17,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:54:17,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:54:17,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:54:17,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:54:17,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:54:17,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 00:54:17,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:54:17,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:54:17,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:54:17,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:54:17,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:54:17,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:54:17,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:54:17,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:54:17,465 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:54:17,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:54:17,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:54:17,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:54:17,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:54:17,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:54:17,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 00:54:17,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 00:54:17,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 00:54:17,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:54:17,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:54:17,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:54:17,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:54:17,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:54:17,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:54:17,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:54:17,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:54:17,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:54:17,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:54:17,469 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 00:54:17,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 00:54:17,469 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:54:17,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:54:17,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:54:17,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 00:54:17,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2022-07-20 00:54:17,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:54:17,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:54:17,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:54:17,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:54:17,855 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:54:17,858 INFO L432 ainManager$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 [2022-07-20 00:54:17,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9551e2ed7/8bf513b1469c4cb08feb1a032f44d070/FLAGa31c29350 [2022-07-20 00:54:19,014 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:54:19,014 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 [2022-07-20 00:54:19,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9551e2ed7/8bf513b1469c4cb08feb1a032f44d070/FLAGa31c29350 [2022-07-20 00:54:19,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9551e2ed7/8bf513b1469c4cb08feb1a032f44d070 [2022-07-20 00:54:19,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:54:19,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:54:19,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:54:19,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:54:19,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:54:19,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:54:19" (1/1) ... [2022-07-20 00:54:19,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d709ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:19, skipping insertion in model container [2022-07-20 00:54:19,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:54:19" (1/1) ... [2022-07-20 00:54:19,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:54:19,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:54:25,298 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] [2022-07-20 00:54:25,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:54:26,022 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 00:54:26,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:54:26,649 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] [2022-07-20 00:54:26,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:54:26,719 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:54:27,277 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] [2022-07-20 00:54:27,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:54:27,596 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:54:27,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27 WrapperNode [2022-07-20 00:54:27,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:54:27,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:54:27,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:54:27,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:54:27,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:27,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,004 INFO L137 Inliner]: procedures = 621, calls = 6407, calls flagged for inlining = 203, calls inlined = 162, statements flattened = 7479 [2022-07-20 00:54:28,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:54:28,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:54:28,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:54:28,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:54:28,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:54:28,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:54:28,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:54:28,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:54:28,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (1/1) ... [2022-07-20 00:54:28,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:54:28,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:54:28,508 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) [2022-07-20 00:54:28,535 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 [2022-07-20 00:54:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-20 00:54:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-20 00:54:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-20 00:54:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-20 00:54:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-07-20 00:54:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-07-20 00:54:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-20 00:54:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 00:54:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 00:54:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:54:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:54:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-20 00:54:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-20 00:54:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 00:54:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 00:54:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:54:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:54:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-20 00:54:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-20 00:54:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-20 00:54:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-20 00:54:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 00:54:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 00:54:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-20 00:54:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-20 00:54:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:54:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:54:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-20 00:54:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-20 00:54:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-20 00:54:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-20 00:54:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-20 00:54:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-20 00:54:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 00:54:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 00:54:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 00:54:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 00:54:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 00:54:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 00:54:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-20 00:54:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-20 00:54:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 00:54:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 00:54:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 00:54:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 00:54:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:54:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 00:54:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 00:54:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 00:54:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 00:54:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-20 00:54:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-20 00:54:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 00:54:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 00:54:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-20 00:54:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-20 00:54:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-20 00:54:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-20 00:54:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 00:54:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 00:54:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 00:54:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 00:54:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-20 00:54:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-20 00:54:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 00:54:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 00:54:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-20 00:54:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-20 00:54:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 00:54:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 00:54:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 00:54:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 00:54:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 00:54:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 00:54:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-20 00:54:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-20 00:54:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-07-20 00:54:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-07-20 00:54:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 00:54:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 00:54:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:54:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:54:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:54:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:54:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 00:54:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 00:54:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 00:54:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 00:54:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:54:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 00:54:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 00:54:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 00:54:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 00:54:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 00:54:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 00:54:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 00:54:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 00:54:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 00:54:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 00:54:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-20 00:54:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-20 00:54:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-20 00:54:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-20 00:54:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-20 00:54:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-20 00:54:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 00:54:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 00:54:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 00:54:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-07-20 00:54:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-07-20 00:54:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-20 00:54:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-20 00:54:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-20 00:54:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-20 00:54:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:54:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:54:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 00:54:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 00:54:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 00:54:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-20 00:54:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-20 00:54:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-20 00:54:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-20 00:54:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 00:54:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 00:54:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 00:54:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 00:54:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 00:54:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:54:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:54:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-20 00:54:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-20 00:54:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 00:54:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 00:54:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 00:54:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 00:54:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-20 00:54:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-20 00:54:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-20 00:54:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2022-07-20 00:54:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-20 00:54:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-20 00:54:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:54:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:54:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:54:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:54:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 00:54:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 00:54:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:54:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:54:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:54:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:54:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 00:54:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 00:54:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 00:54:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 00:54:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-20 00:54:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-20 00:54:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-20 00:54:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-20 00:54:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 00:54:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 00:54:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-20 00:54:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-20 00:54:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:54:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 00:54:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 00:54:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-20 00:54:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-20 00:54:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:54:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-20 00:54:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-20 00:54:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-20 00:54:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-20 00:54:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 00:54:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-20 00:54:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-20 00:54:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 00:54:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 00:54:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 00:54:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:54:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-20 00:54:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-20 00:54:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-20 00:54:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-20 00:54:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 00:54:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 00:54:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-20 00:54:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-20 00:54:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-20 00:54:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-20 00:54:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-20 00:54:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-20 00:54:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 00:54:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 00:54:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-20 00:54:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-20 00:54:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-20 00:54:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-20 00:54:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 00:54:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 00:54:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-20 00:54:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-20 00:54:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-20 00:54:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-20 00:54:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-20 00:54:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-20 00:54:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 00:54:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 00:54:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2022-07-20 00:54:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2022-07-20 00:54:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 00:54:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 00:54:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-20 00:54:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-20 00:54:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-20 00:54:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-20 00:54:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 00:54:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 00:54:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-20 00:54:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-20 00:54:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-20 00:54:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mgmt_lock_of_NOT_ARG_SIGN [2022-07-20 00:54:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-20 00:54:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-20 00:54:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 00:54:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 00:54:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 00:54:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 00:54:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-20 00:54:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_stats_lock_of_NOT_ARG_SIGN [2022-07-20 00:54:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-20 00:54:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-20 00:54:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:54:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:54:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-20 00:54:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-20 00:54:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-20 00:54:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2022-07-20 00:54:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-20 00:54:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-20 00:54:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:54:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:54:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-20 00:54:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-20 00:54:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 00:54:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 00:54:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-20 00:54:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-20 00:54:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-20 00:54:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-20 00:54:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-20 00:54:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-20 00:54:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-07-20 00:54:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-07-20 00:54:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-20 00:54:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-20 00:54:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-20 00:54:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-20 00:54:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-20 00:54:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2022-07-20 00:54:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2022-07-20 00:54:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2022-07-20 00:54:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-20 00:54:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-20 00:54:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 00:54:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 00:54:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-20 00:54:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-20 00:54:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-20 00:54:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-20 00:54:29,416 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:54:29,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:54:33,461 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:55:27,360 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:55:27,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:55:27,385 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 00:55:27,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:55:27 BoogieIcfgContainer [2022-07-20 00:55:27,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:55:27,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:55:27,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:55:27,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:55:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:54:19" (1/3) ... [2022-07-20 00:55:27,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d2bdeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:55:27, skipping insertion in model container [2022-07-20 00:55:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:54:27" (2/3) ... [2022-07-20 00:55:27,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d2bdeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:55:27, skipping insertion in model container [2022-07-20 00:55:27,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:55:27" (3/3) ... [2022-07-20 00:55:27,397 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-20 00:55:27,410 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:55:27,410 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:55:27,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:55:27,508 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@25fb2133, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6452f62 [2022-07-20 00:55:27,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:55:27,520 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) [2022-07-20 00:55:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-20 00:55:27,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:55:27,535 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] [2022-07-20 00:55:27,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:55:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:55:27,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1446364687, now seen corresponding path program 1 times [2022-07-20 00:55:27,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:55:27,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003719441] [2022-07-20 00:55:27,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:55:27,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:55:27,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:55:27,569 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) [2022-07-20 00:55:27,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 00:55:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:55:35,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-20 00:55:35,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:55:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 00:55:35,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:55:35,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:55:35,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003719441] [2022-07-20 00:55:35,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003719441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:55:35,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:55:35,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:55:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754053515] [2022-07-20 00:55:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:55:35,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 00:55:35,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:55:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 00:55:35,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 00:55:35,403 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) [2022-07-20 00:55:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:55:35,658 INFO L93 Difference]: Finished difference Result 3917 states and 5568 transitions. [2022-07-20 00:55:35,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 00:55:35,660 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 [2022-07-20 00:55:35,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:55:35,683 INFO L225 Difference]: With dead ends: 3917 [2022-07-20 00:55:35,683 INFO L226 Difference]: Without dead ends: 1917 [2022-07-20 00:55:35,698 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 [2022-07-20 00:55:35,701 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 [2022-07-20 00:55:35,702 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] [2022-07-20 00:55:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-07-20 00:55:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2022-07-20 00:55:35,837 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) [2022-07-20 00:55:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2642 transitions. [2022-07-20 00:55:35,857 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2642 transitions. Word has length 52 [2022-07-20 00:55:35,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:55:35,857 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2642 transitions. [2022-07-20 00:55:35,858 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) [2022-07-20 00:55:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2642 transitions. [2022-07-20 00:55:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-20 00:55:35,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:55:35,866 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] [2022-07-20 00:55:36,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 00:55:36,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:55:36,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:55:36,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:55:36,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1870011409, now seen corresponding path program 1 times [2022-07-20 00:55:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:55:36,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902505755] [2022-07-20 00:55:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:55:36,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:55:36,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:55:36,091 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) [2022-07-20 00:55:36,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 00:55:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:55:43,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 00:55:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:55:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 00:55:43,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:55:43,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:55:43,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902505755] [2022-07-20 00:55:43,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902505755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:55:43,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:55:43,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:55:43,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829821641] [2022-07-20 00:55:43,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:55:43,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:55:43,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:55:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:55:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:55:43,897 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) [2022-07-20 00:55:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:55:44,443 INFO L93 Difference]: Finished difference Result 3834 states and 5289 transitions. [2022-07-20 00:55:44,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 00:55:44,445 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 [2022-07-20 00:55:44,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:55:44,460 INFO L225 Difference]: With dead ends: 3834 [2022-07-20 00:55:44,460 INFO L226 Difference]: Without dead ends: 1920 [2022-07-20 00:55:44,471 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 [2022-07-20 00:55:44,472 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 6 mSDsluCounter, 10526 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 00:55:44,473 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] [2022-07-20 00:55:44,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-07-20 00:55:44,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1920. [2022-07-20 00:55:44,545 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) [2022-07-20 00:55:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2646 transitions. [2022-07-20 00:55:44,562 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2646 transitions. Word has length 52 [2022-07-20 00:55:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:55:44,562 INFO L495 AbstractCegarLoop]: Abstraction has 1920 states and 2646 transitions. [2022-07-20 00:55:44,563 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) [2022-07-20 00:55:44,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2646 transitions. [2022-07-20 00:55:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-20 00:55:44,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:55:44,566 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] [2022-07-20 00:55:44,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 00:55:44,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:55:44,788 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:55:44,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:55:44,788 INFO L85 PathProgramCache]: Analyzing trace with hash 601646586, now seen corresponding path program 1 times [2022-07-20 00:55:44,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:55:44,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881088414] [2022-07-20 00:55:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:55:44,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:55:44,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:55:44,801 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) [2022-07-20 00:55:44,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 00:55:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:55:52,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 5208 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 00:55:52,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:55:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 00:55:52,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:55:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 00:55:53,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:55:53,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881088414] [2022-07-20 00:55:53,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881088414] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:55:53,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:55:53,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-20 00:55:53,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857159672] [2022-07-20 00:55:53,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:55:53,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 00:55:53,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:55:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 00:55:53,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:55:53,776 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) [2022-07-20 00:55:54,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:55:54,851 INFO L93 Difference]: Finished difference Result 3840 states and 5297 transitions. [2022-07-20 00:55:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 00:55:54,853 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 [2022-07-20 00:55:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:55:54,867 INFO L225 Difference]: With dead ends: 3840 [2022-07-20 00:55:54,867 INFO L226 Difference]: Without dead ends: 1923 [2022-07-20 00:55:54,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:55:54,881 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 15 mSDsluCounter, 15787 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-07-20 00:55:54,883 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] [2022-07-20 00:55:54,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-20 00:55:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1921. [2022-07-20 00:55:54,944 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) [2022-07-20 00:55:54,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2648 transitions. [2022-07-20 00:55:54,967 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2648 transitions. Word has length 53 [2022-07-20 00:55:54,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:55:54,968 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 2648 transitions. [2022-07-20 00:55:54,968 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) [2022-07-20 00:55:54,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2648 transitions. [2022-07-20 00:55:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-20 00:55:54,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:55:54,970 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] [2022-07-20 00:55:55,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 00:55:55,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:55:55,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:55:55,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:55:55,184 INFO L85 PathProgramCache]: Analyzing trace with hash -62957263, now seen corresponding path program 2 times [2022-07-20 00:55:55,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:55:55,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297188481] [2022-07-20 00:55:55,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:55:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:55:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:55:55,196 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) [2022-07-20 00:55:55,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 00:56:02,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:56:02,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:56:02,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 5197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:56:02,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:56:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 00:56:02,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:56:02,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:56:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297188481] [2022-07-20 00:56:02,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297188481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:56:02,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:56:02,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:56:02,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220356462] [2022-07-20 00:56:02,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:56:02,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:56:02,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:56:02,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:56:02,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:56:02,826 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) [2022-07-20 00:56:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:56:03,450 INFO L93 Difference]: Finished difference Result 5716 states and 7884 transitions. [2022-07-20 00:56:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:56:03,451 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 [2022-07-20 00:56:03,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:56:03,479 INFO L225 Difference]: With dead ends: 5716 [2022-07-20 00:56:03,479 INFO L226 Difference]: Without dead ends: 3805 [2022-07-20 00:56:03,491 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 [2022-07-20 00:56:03,493 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 2590 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 00:56:03,494 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] [2022-07-20 00:56:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2022-07-20 00:56:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3797. [2022-07-20 00:56:03,640 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) [2022-07-20 00:56:03,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 5238 transitions. [2022-07-20 00:56:03,667 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 5238 transitions. Word has length 54 [2022-07-20 00:56:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:56:03,667 INFO L495 AbstractCegarLoop]: Abstraction has 3797 states and 5238 transitions. [2022-07-20 00:56:03,668 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) [2022-07-20 00:56:03,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 5238 transitions. [2022-07-20 00:56:03,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-20 00:56:03,671 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:56:03,672 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] [2022-07-20 00:56:03,887 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2022-07-20 00:56:03,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 00:56:03,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:56:03,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:56:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:56:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1975745629, now seen corresponding path program 1 times [2022-07-20 00:56:03,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:56:03,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334584476] [2022-07-20 00:56:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:56:03,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:56:03,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:56:03,917 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) [2022-07-20 00:56:03,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 00:56:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:56:11,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 5286 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 00:56:11,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:56:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 00:56:12,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:56:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-20 00:56:13,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:56:13,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334584476] [2022-07-20 00:56:13,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334584476] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:56:13,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:56:13,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-20 00:56:13,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470019728] [2022-07-20 00:56:13,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:56:13,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-20 00:56:13,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:56:13,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-20 00:56:13,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-20 00:56:13,565 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) [2022-07-20 00:56:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:56:14,656 INFO L93 Difference]: Finished difference Result 7604 states and 10497 transitions. [2022-07-20 00:56:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 00:56:14,657 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 [2022-07-20 00:56:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:56:14,685 INFO L225 Difference]: With dead ends: 7604 [2022-07-20 00:56:14,686 INFO L226 Difference]: Without dead ends: 3807 [2022-07-20 00:56:14,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-07-20 00:56:14,708 INFO L413 NwaCegarLoop]: 2638 mSDtfsCounter, 25 mSDsluCounter, 10528 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 00:56:14,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 13166 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 00:56:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2022-07-20 00:56:14,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3799. [2022-07-20 00:56:14,858 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) [2022-07-20 00:56:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 5242 transitions. [2022-07-20 00:56:14,881 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 5242 transitions. Word has length 75 [2022-07-20 00:56:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:56:14,882 INFO L495 AbstractCegarLoop]: Abstraction has 3799 states and 5242 transitions. [2022-07-20 00:56:14,882 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) [2022-07-20 00:56:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 5242 transitions. [2022-07-20 00:56:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-20 00:56:14,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:56:14,886 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] [2022-07-20 00:56:15,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 00:56:15,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:56:15,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:56:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:56:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash -37348268, now seen corresponding path program 2 times [2022-07-20 00:56:15,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:56:15,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727605504] [2022-07-20 00:56:15,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:56:15,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:56:15,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:56:15,120 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) [2022-07-20 00:56:15,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 00:56:22,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:56:22,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:56:23,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 5145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 00:56:23,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:56:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-20 00:56:24,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:56:24,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:56:24,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727605504] [2022-07-20 00:56:24,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727605504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:56:24,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:56:24,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:56:24,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219387645] [2022-07-20 00:56:24,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:56:24,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:56:24,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:56:24,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:56:24,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:56:24,181 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) [2022-07-20 00:56:24,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:56:24,471 INFO L93 Difference]: Finished difference Result 11357 states and 15682 transitions. [2022-07-20 00:56:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:56:24,472 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 [2022-07-20 00:56:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:56:24,538 INFO L225 Difference]: With dead ends: 11357 [2022-07-20 00:56:24,539 INFO L226 Difference]: Without dead ends: 7568 [2022-07-20 00:56:24,691 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 [2022-07-20 00:56:24,693 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 [2022-07-20 00:56:24,693 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] [2022-07-20 00:56:24,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2022-07-20 00:56:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 7552. [2022-07-20 00:56:25,019 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) [2022-07-20 00:56:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 10430 transitions. [2022-07-20 00:56:25,075 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 10430 transitions. Word has length 76 [2022-07-20 00:56:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:56:25,076 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 10430 transitions. [2022-07-20 00:56:25,077 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) [2022-07-20 00:56:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 10430 transitions. [2022-07-20 00:56:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-20 00:56:25,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:56:25,082 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] [2022-07-20 00:56:25,295 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-07-20 00:56:25,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 00:56:25,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:56:25,314 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:56:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:56:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash -525632627, now seen corresponding path program 1 times [2022-07-20 00:56:25,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:56:25,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626548635] [2022-07-20 00:56:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:56:25,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:56:25,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:56:25,328 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) [2022-07-20 00:56:25,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 00:56:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:56:33,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 5299 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-20 00:56:33,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:56:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 00:56:33,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 00:56:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-20 00:56:35,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:56:35,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626548635] [2022-07-20 00:56:35,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626548635] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 00:56:35,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 00:56:35,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-20 00:56:35,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942033190] [2022-07-20 00:56:35,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 00:56:35,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 00:56:35,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:56:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 00:56:35,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-20 00:56:35,517 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) [2022-07-20 00:56:37,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:56:37,410 INFO L93 Difference]: Finished difference Result 15138 states and 20917 transitions. [2022-07-20 00:56:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 00:56:37,412 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 [2022-07-20 00:56:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:56:37,472 INFO L225 Difference]: With dead ends: 15138 [2022-07-20 00:56:37,472 INFO L226 Difference]: Without dead ends: 7580 [2022-07-20 00:56:37,515 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 [2022-07-20 00:56:37,516 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, 1.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:56:37,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28964 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-20 00:56:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2022-07-20 00:56:37,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7556. [2022-07-20 00:56:37,847 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) [2022-07-20 00:56:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 10438 transitions. [2022-07-20 00:56:37,889 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 10438 transitions. Word has length 75 [2022-07-20 00:56:37,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:56:37,889 INFO L495 AbstractCegarLoop]: Abstraction has 7556 states and 10438 transitions. [2022-07-20 00:56:37,890 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) [2022-07-20 00:56:37,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 10438 transitions. [2022-07-20 00:56:37,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-20 00:56:37,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:56:37,896 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] [2022-07-20 00:56:38,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 00:56:38,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:56:38,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:56:38,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:56:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1756240772, now seen corresponding path program 2 times [2022-07-20 00:56:38,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:56:38,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879527507] [2022-07-20 00:56:38,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 00:56:38,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:56:38,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:56:38,131 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) [2022-07-20 00:56:38,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 00:56:45,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 00:56:45,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 00:56:45,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:56:45,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:56:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 00:56:46,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:56:46,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:56:46,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879527507] [2022-07-20 00:56:46,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879527507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:56:46,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:56:46,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:56:46,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542414756] [2022-07-20 00:56:46,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:56:46,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:56:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:56:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:56:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:56:46,517 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) [2022-07-20 00:56:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:56:46,660 INFO L93 Difference]: Finished difference Result 7558 states and 10439 transitions. [2022-07-20 00:56:46,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:56:46,661 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 [2022-07-20 00:56:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:56:46,712 INFO L225 Difference]: With dead ends: 7558 [2022-07-20 00:56:46,712 INFO L226 Difference]: Without dead ends: 7555 [2022-07-20 00:56:46,719 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 [2022-07-20 00:56:46,719 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 [2022-07-20 00:56:46,720 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] [2022-07-20 00:56:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7555 states. [2022-07-20 00:56:46,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7555 to 7555. [2022-07-20 00:56:46,947 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) [2022-07-20 00:56:47,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7555 states to 7555 states and 10435 transitions. [2022-07-20 00:56:47,055 INFO L78 Accepts]: Start accepts. Automaton has 7555 states and 10435 transitions. Word has length 76 [2022-07-20 00:56:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:56:47,056 INFO L495 AbstractCegarLoop]: Abstraction has 7555 states and 10435 transitions. [2022-07-20 00:56:47,056 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) [2022-07-20 00:56:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 7555 states and 10435 transitions. [2022-07-20 00:56:47,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-20 00:56:47,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:56:47,060 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] [2022-07-20 00:56:47,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 00:56:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:56:47,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:56:47,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:56:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1391970591, now seen corresponding path program 1 times [2022-07-20 00:56:47,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:56:47,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179291416] [2022-07-20 00:56:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:56:47,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:56:47,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:56:47,284 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) [2022-07-20 00:56:47,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 00:56:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:56:54,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 5311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:56:54,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:56:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 00:56:55,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:56:55,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:56:55,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179291416] [2022-07-20 00:56:55,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179291416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:56:55,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:56:55,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:56:55,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827910837] [2022-07-20 00:56:55,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:56:55,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:56:55,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:56:55,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:56:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:56:55,598 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) [2022-07-20 00:56:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:56:55,722 INFO L93 Difference]: Finished difference Result 7557 states and 10436 transitions. [2022-07-20 00:56:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:56:55,723 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 [2022-07-20 00:56:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:56:55,762 INFO L225 Difference]: With dead ends: 7557 [2022-07-20 00:56:55,762 INFO L226 Difference]: Without dead ends: 7554 [2022-07-20 00:56:55,770 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 [2022-07-20 00:56:55,771 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 [2022-07-20 00:56:55,771 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] [2022-07-20 00:56:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7554 states. [2022-07-20 00:56:56,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7554 to 7554. [2022-07-20 00:56:56,025 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) [2022-07-20 00:56:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 10432 transitions. [2022-07-20 00:56:56,064 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 10432 transitions. Word has length 77 [2022-07-20 00:56:56,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:56:56,066 INFO L495 AbstractCegarLoop]: Abstraction has 7554 states and 10432 transitions. [2022-07-20 00:56:56,066 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) [2022-07-20 00:56:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 10432 transitions. [2022-07-20 00:56:56,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-20 00:56:56,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:56:56,068 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] [2022-07-20 00:56:56,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-20 00:56:56,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:56:56,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:56:56,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:56:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash -202270169, now seen corresponding path program 1 times [2022-07-20 00:56:56,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:56:56,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431516666] [2022-07-20 00:56:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:56:56,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:56:56,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:56:56,294 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) [2022-07-20 00:56:56,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 00:57:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:57:04,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 5312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:57:04,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:57:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 00:57:04,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:57:04,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:57:04,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431516666] [2022-07-20 00:57:04,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431516666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:57:04,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:57:04,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:57:04,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721585688] [2022-07-20 00:57:04,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:57:04,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:57:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:57:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:57:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:57:04,798 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) [2022-07-20 00:57:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:57:04,919 INFO L93 Difference]: Finished difference Result 7570 states and 10442 transitions. [2022-07-20 00:57:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:57:04,920 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 [2022-07-20 00:57:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:57:04,953 INFO L225 Difference]: With dead ends: 7570 [2022-07-20 00:57:04,954 INFO L226 Difference]: Without dead ends: 7566 [2022-07-20 00:57:04,959 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 [2022-07-20 00:57:04,960 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 [2022-07-20 00:57:04,960 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] [2022-07-20 00:57:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2022-07-20 00:57:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 7564. [2022-07-20 00:57:05,198 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) [2022-07-20 00:57:05,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 10432 transitions. [2022-07-20 00:57:05,230 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 10432 transitions. Word has length 78 [2022-07-20 00:57:05,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:57:05,231 INFO L495 AbstractCegarLoop]: Abstraction has 7564 states and 10432 transitions. [2022-07-20 00:57:05,231 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) [2022-07-20 00:57:05,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 10432 transitions. [2022-07-20 00:57:05,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-20 00:57:05,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:57:05,233 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] [2022-07-20 00:57:05,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 00:57:05,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:57:05,454 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:57:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:57:05,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1976257884, now seen corresponding path program 1 times [2022-07-20 00:57:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:57:05,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607731588] [2022-07-20 00:57:05,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:57:05,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:57:05,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:57:05,462 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) [2022-07-20 00:57:05,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 00:57:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:57:13,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:57:13,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:57:13,824 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 00:57:13,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:57:13,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:57:13,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607731588] [2022-07-20 00:57:13,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607731588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:57:13,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:57:13,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:57:13,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953531717] [2022-07-20 00:57:13,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:57:13,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:57:13,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:57:13,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:57:13,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:57:13,826 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) [2022-07-20 00:57:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:57:14,121 INFO L93 Difference]: Finished difference Result 22624 states and 31471 transitions. [2022-07-20 00:57:14,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:57:14,122 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 [2022-07-20 00:57:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:57:14,212 INFO L225 Difference]: With dead ends: 22624 [2022-07-20 00:57:14,213 INFO L226 Difference]: Without dead ends: 15070 [2022-07-20 00:57:14,256 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 [2022-07-20 00:57:14,258 INFO L413 NwaCegarLoop]: 3279 mSDtfsCounter, 2583 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:57:14,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2583 Valid, 5892 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 00:57:14,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15070 states. [2022-07-20 00:57:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15070 to 15048. [2022-07-20 00:57:14,876 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) [2022-07-20 00:57:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15048 states to 15048 states and 20888 transitions. [2022-07-20 00:57:14,953 INFO L78 Accepts]: Start accepts. Automaton has 15048 states and 20888 transitions. Word has length 79 [2022-07-20 00:57:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:57:14,954 INFO L495 AbstractCegarLoop]: Abstraction has 15048 states and 20888 transitions. [2022-07-20 00:57:14,954 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) [2022-07-20 00:57:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 15048 states and 20888 transitions. [2022-07-20 00:57:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-20 00:57:14,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:57:14,956 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] [2022-07-20 00:57:15,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 00:57:15,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:57:15,172 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:57:15,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:57:15,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1135297334, now seen corresponding path program 1 times [2022-07-20 00:57:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:57:15,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551306399] [2022-07-20 00:57:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:57:15,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:57:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:57:15,182 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) [2022-07-20 00:57:15,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 00:57:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:57:23,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 5314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:57:23,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:57:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 00:57:23,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:57:23,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:57:23,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551306399] [2022-07-20 00:57:23,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551306399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:57:23,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:57:23,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:57:23,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079454657] [2022-07-20 00:57:23,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:57:23,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:57:23,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:57:23,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:57:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:57:23,895 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) [2022-07-20 00:57:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:57:24,223 INFO L93 Difference]: Finished difference Result 15050 states and 20889 transitions. [2022-07-20 00:57:24,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:57:24,224 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 [2022-07-20 00:57:24,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:57:24,295 INFO L225 Difference]: With dead ends: 15050 [2022-07-20 00:57:24,296 INFO L226 Difference]: Without dead ends: 15047 [2022-07-20 00:57:24,306 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 [2022-07-20 00:57:24,307 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 [2022-07-20 00:57:24,307 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] [2022-07-20 00:57:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15047 states. [2022-07-20 00:57:24,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15047 to 15047. [2022-07-20 00:57:24,834 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) [2022-07-20 00:57:24,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15047 states to 15047 states and 20885 transitions. [2022-07-20 00:57:24,919 INFO L78 Accepts]: Start accepts. Automaton has 15047 states and 20885 transitions. Word has length 80 [2022-07-20 00:57:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:57:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 15047 states and 20885 transitions. [2022-07-20 00:57:24,919 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) [2022-07-20 00:57:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 15047 states and 20885 transitions. [2022-07-20 00:57:24,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-20 00:57:24,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:57:24,922 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] [2022-07-20 00:57:25,135 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forcibly destroying the process [2022-07-20 00:57:25,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 00:57:25,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:57:25,138 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:57:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:57:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash -125926547, now seen corresponding path program 1 times [2022-07-20 00:57:25,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:57:25,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049885805] [2022-07-20 00:57:25,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:57:25,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:57:25,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:57:25,152 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) [2022-07-20 00:57:25,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 00:57:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:57:33,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 5316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:57:33,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:57:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 00:57:33,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:57:33,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:57:33,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049885805] [2022-07-20 00:57:33,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049885805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:57:33,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:57:33,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 00:57:33,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056604728] [2022-07-20 00:57:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:57:33,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:57:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:57:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:57:33,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:57:33,979 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) [2022-07-20 00:57:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:57:34,231 INFO L93 Difference]: Finished difference Result 15049 states and 20886 transitions. [2022-07-20 00:57:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:57:34,231 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 [2022-07-20 00:57:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:57:34,314 INFO L225 Difference]: With dead ends: 15049 [2022-07-20 00:57:34,314 INFO L226 Difference]: Without dead ends: 15035 [2022-07-20 00:57:34,332 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 [2022-07-20 00:57:34,333 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 [2022-07-20 00:57:34,333 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] [2022-07-20 00:57:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2022-07-20 00:57:34,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 15035. [2022-07-20 00:57:34,906 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) [2022-07-20 00:57:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15035 states to 15035 states and 20869 transitions. [2022-07-20 00:57:34,979 INFO L78 Accepts]: Start accepts. Automaton has 15035 states and 20869 transitions. Word has length 82 [2022-07-20 00:57:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:57:34,979 INFO L495 AbstractCegarLoop]: Abstraction has 15035 states and 20869 transitions. [2022-07-20 00:57:34,980 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) [2022-07-20 00:57:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 15035 states and 20869 transitions. [2022-07-20 00:57:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-20 00:57:34,984 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:57:34,984 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] [2022-07-20 00:57:35,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-20 00:57:35,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:57:35,204 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:57:35,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:57:35,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1733469006, now seen corresponding path program 1 times [2022-07-20 00:57:35,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:57:35,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063552323] [2022-07-20 00:57:35,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:57:35,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:57:35,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:57:35,212 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) [2022-07-20 00:57:35,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 00:57:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:57:43,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 5379 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:57:43,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:57:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-20 00:57:43,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:57:43,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:57:43,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063552323] [2022-07-20 00:57:43,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063552323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:57:43,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:57:43,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:57:43,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255549340] [2022-07-20 00:57:43,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:57:43,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:57:43,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:57:43,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:57:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:57:43,213 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) [2022-07-20 00:57:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:57:44,455 INFO L93 Difference]: Finished difference Result 44737 states and 62121 transitions. [2022-07-20 00:57:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:57:44,456 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 [2022-07-20 00:57:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:57:44,645 INFO L225 Difference]: With dead ends: 44737 [2022-07-20 00:57:44,646 INFO L226 Difference]: Without dead ends: 29712 [2022-07-20 00:57:44,726 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 [2022-07-20 00:57:44,727 INFO L413 NwaCegarLoop]: 3090 mSDtfsCounter, 2552 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-20 00:57:44,727 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] [2022-07-20 00:57:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2022-07-20 00:57:45,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 29675. [2022-07-20 00:57:45,992 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) [2022-07-20 00:57:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29675 states to 29675 states and 41219 transitions. [2022-07-20 00:57:46,114 INFO L78 Accepts]: Start accepts. Automaton has 29675 states and 41219 transitions. Word has length 103 [2022-07-20 00:57:46,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:57:46,115 INFO L495 AbstractCegarLoop]: Abstraction has 29675 states and 41219 transitions. [2022-07-20 00:57:46,115 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) [2022-07-20 00:57:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 29675 states and 41219 transitions. [2022-07-20 00:57:46,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-20 00:57:46,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:57:46,123 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] [2022-07-20 00:57:46,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-20 00:57:46,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:57:46,344 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:57:46,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:57:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash -653991023, now seen corresponding path program 1 times [2022-07-20 00:57:46,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:57:46,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951460354] [2022-07-20 00:57:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:57:46,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:57:46,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:57:46,353 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) [2022-07-20 00:57:46,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 00:57:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:57:54,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 5502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:57:54,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:57:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-20 00:57:54,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:57:54,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 00:57:54,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951460354] [2022-07-20 00:57:54,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951460354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:57:54,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:57:54,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 00:57:54,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082740556] [2022-07-20 00:57:54,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:57:54,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:57:54,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 00:57:54,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:57:54,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 00:57:54,541 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) [2022-07-20 00:57:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:57:57,133 INFO L93 Difference]: Finished difference Result 80476 states and 111600 transitions. [2022-07-20 00:57:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:57:57,133 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 [2022-07-20 00:57:57,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:57:57,480 INFO L225 Difference]: With dead ends: 80476 [2022-07-20 00:57:57,480 INFO L226 Difference]: Without dead ends: 50811 [2022-07-20 00:57:57,583 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 [2022-07-20 00:57:57,584 INFO L413 NwaCegarLoop]: 3045 mSDtfsCounter, 1863 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-20 00:57:57,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 5608 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-20 00:57:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50811 states. [2022-07-20 00:57:59,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50811 to 50751. [2022-07-20 00:57:59,270 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) [2022-07-20 00:57:59,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50751 states to 50751 states and 70317 transitions. [2022-07-20 00:57:59,779 INFO L78 Accepts]: Start accepts. Automaton has 50751 states and 70317 transitions. Word has length 115 [2022-07-20 00:57:59,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:57:59,779 INFO L495 AbstractCegarLoop]: Abstraction has 50751 states and 70317 transitions. [2022-07-20 00:57:59,779 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) [2022-07-20 00:57:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 50751 states and 70317 transitions. [2022-07-20 00:57:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-20 00:57:59,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:57:59,794 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:57:59,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 00:57:59,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 00:57:59,995 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:57:59,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:57:59,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1618123476, now seen corresponding path program 1 times [2022-07-20 00:58:00,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 00:58:00,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5278791] [2022-07-20 00:58:00,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:58:00,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 00:58:00,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 00:58:00,004 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) [2022-07-20 00:58:00,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process