./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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 fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:46:28,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:46:28,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:46:28,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:46:28,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:46:28,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:46:29,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:46:29,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:46:29,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:46:29,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:46:29,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:46:29,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:46:29,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:46:29,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:46:29,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:46:29,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:46:29,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:46:29,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:46:29,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:46:29,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:46:29,023 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:46:29,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:46:29,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:46:29,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:46:29,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:46:29,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:46:29,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:46:29,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:46:29,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:46:29,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:46:29,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:46:29,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:46:29,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:46:29,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:46:29,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:46:29,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:46:29,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:46:29,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:46:29,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:46:29,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:46:29,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:46:29,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:46:29,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:46:29,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:46:29,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:46:29,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:46:29,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:46:29,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:46:29,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:46:29,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:46:29,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:46:29,078 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:46:29,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:46:29,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:46:29,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:46:29,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:46:29,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:46:29,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:46:29,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:46:29,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:46:29,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:46:29,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:46:29,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:46:29,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:46:29,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:46:29,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:46:29,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:46:29,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:46:29,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:46:29,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:46:29,082 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:46:29,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:46:29,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:46:29,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-19 23:46:29,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:46:29,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:46:29,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:46:29,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:46:29,264 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:46:29,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-19 23:46:29,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fc2b58a/7f0a38ed470841359232a16f0d04e49d/FLAG9a64fb860 [2022-07-19 23:46:29,920 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:46:29,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-19 23:46:29,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fc2b58a/7f0a38ed470841359232a16f0d04e49d/FLAG9a64fb860 [2022-07-19 23:46:30,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5fc2b58a/7f0a38ed470841359232a16f0d04e49d [2022-07-19 23:46:30,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:46:30,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:46:30,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:46:30,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:46:30,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:46:30,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:46:30" (1/1) ... [2022-07-19 23:46:30,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3734194b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:30, skipping insertion in model container [2022-07-19 23:46:30,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:46:30" (1/1) ... [2022-07-19 23:46:30,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:46:30,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:46:30,842 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-19 23:46:30,849 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-19 23:46:31,373 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-19 23:46:32,337 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-19 23:46:32,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:46:32,404 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:46:32,528 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-19 23:46:32,529 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-19 23:46:32,540 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-19 23:46:32,647 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) 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: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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) 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) [2022-07-19 23:46:32,652 INFO L158 Benchmark]: Toolchain (without parser) took 2305.69ms. Allocated memory was 121.6MB in the beginning and 230.7MB in the end (delta: 109.1MB). Free memory was 75.6MB in the beginning and 142.4MB in the end (delta: -66.9MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-07-19 23:46:32,653 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 23:46:32,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2304.19ms. Allocated memory was 121.6MB in the beginning and 230.7MB in the end (delta: 109.1MB). Free memory was 75.3MB in the beginning and 142.4MB in the end (delta: -67.2MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-07-19 23:46:32,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2304.19ms. Allocated memory was 121.6MB in the beginning and 230.7MB in the end (delta: 109.1MB). Free memory was 75.3MB in the beginning and 142.4MB in the end (delta: -67.2MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: hash = (unsigned int )((path.dentry)->d_inode)->i_ino & 255U [8524]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.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 fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:46:34,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:46:34,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:46:34,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:46:34,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:46:34,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:46:34,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:46:34,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:46:34,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:46:34,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:46:34,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:46:34,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:46:34,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:46:34,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:46:34,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:46:34,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:46:34,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:46:34,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:46:34,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:46:34,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:46:34,431 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:46:34,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:46:34,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:46:34,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:46:34,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:46:34,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:46:34,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:46:34,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:46:34,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:46:34,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:46:34,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:46:34,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:46:34,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:46:34,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:46:34,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:46:34,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:46:34,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:46:34,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:46:34,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:46:34,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:46:34,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:46:34,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:46:34,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 23:46:34,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:46:34,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:46:34,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:46:34,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:46:34,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:46:34,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:46:34,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:46:34,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:46:34,492 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:46:34,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:46:34,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:46:34,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:46:34,494 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:46:34,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:46:34,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:46:34,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:46:34,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:46:34,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:46:34,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:46:34,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:46:34,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:46:34,496 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 23:46:34,496 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 23:46:34,496 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:46:34,497 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:46:34,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:46:34,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 23:46:34,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-07-19 23:46:34,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:46:34,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:46:34,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:46:34,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:46:34,842 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:46:34,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-19 23:46:34,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d78405a3/1068c95dee394d74b4af8cdc8818f65d/FLAG18d374a4c [2022-07-19 23:46:35,634 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:46:35,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-19 23:46:35,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d78405a3/1068c95dee394d74b4af8cdc8818f65d/FLAG18d374a4c [2022-07-19 23:46:35,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d78405a3/1068c95dee394d74b4af8cdc8818f65d [2022-07-19 23:46:35,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:46:35,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:46:35,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:46:35,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:46:35,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:46:35,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:46:35" (1/1) ... [2022-07-19 23:46:35,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfc1d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:35, skipping insertion in model container [2022-07-19 23:46:35,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:46:35" (1/1) ... [2022-07-19 23:46:35,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:46:36,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:46:36,684 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-19 23:46:36,685 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-19 23:46:36,990 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-19 23:46:38,302 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-19 23:46:38,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:46:38,410 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 23:46:38,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:46:38,507 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-19 23:46:38,507 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-19 23:46:38,539 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-19 23:46:38,831 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-19 23:46:38,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:46:38,866 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:46:39,014 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-07-19 23:46:39,015 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-07-19 23:46:39,026 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-07-19 23:46:39,435 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-19 23:46:39,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:46:39,610 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:46:39,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39 WrapperNode [2022-07-19 23:46:39,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:46:39,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:46:39,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:46:39,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:46:39,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:39,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:39,831 INFO L137 Inliner]: procedures = 468, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7021 [2022-07-19 23:46:39,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:46:39,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:46:39,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:46:39,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:46:39,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:39,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:39,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:39,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:40,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:40,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:40,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:40,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:46:40,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:46:40,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:46:40,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:46:40,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (1/1) ... [2022-07-19 23:46:40,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:46:40,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:46:40,251 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) [2022-07-19 23:46:40,280 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 [2022-07-19 23:46:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-19 23:46:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-19 23:46:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-19 23:46:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-07-19 23:46:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-07-19 23:46:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-07-19 23:46:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-07-19 23:46:40,291 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-19 23:46:40,291 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-19 23:46:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-07-19 23:46:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-07-19 23:46:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-19 23:46:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-19 23:46:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-07-19 23:46:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-07-19 23:46:40,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-19 23:46:40,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-19 23:46:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:46:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:46:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-07-19 23:46:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-07-19 23:46:40,293 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-07-19 23:46:40,293 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-07-19 23:46:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-07-19 23:46:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-07-19 23:46:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-19 23:46:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-19 23:46:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-07-19 23:46:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-07-19 23:46:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-07-19 23:46:40,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-07-19 23:46:40,294 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-07-19 23:46:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-07-19 23:46:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-07-19 23:46:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-07-19 23:46:40,295 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-07-19 23:46:40,295 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-07-19 23:46:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-07-19 23:46:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-07-19 23:46:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:46:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:46:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-19 23:46:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-19 23:46:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-07-19 23:46:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-07-19 23:46:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-19 23:46:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-19 23:46:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-07-19 23:46:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-07-19 23:46:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-19 23:46:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-07-19 23:46:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-07-19 23:46:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-19 23:46:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-19 23:46:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-19 23:46:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-07-19 23:46:40,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-07-19 23:46:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-19 23:46:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:46:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-07-19 23:46:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-07-19 23:46:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 23:46:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-07-19 23:46:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-07-19 23:46:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-07-19 23:46:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-07-19 23:46:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 23:46:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-19 23:46:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-07-19 23:46:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-07-19 23:46:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-07-19 23:46:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-07-19 23:46:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-19 23:46:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-19 23:46:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-07-19 23:46:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-07-19 23:46:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-07-19 23:46:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-07-19 23:46:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-07-19 23:46:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-07-19 23:46:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 23:46:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 23:46:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-07-19 23:46:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-07-19 23:46:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-07-19 23:46:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-07-19 23:46:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-07-19 23:46:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-07-19 23:46:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:46:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:46:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-19 23:46:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-19 23:46:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-19 23:46:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-19 23:46:40,305 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-07-19 23:46:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-07-19 23:46:40,305 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-07-19 23:46:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-07-19 23:46:40,305 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-19 23:46:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-19 23:46:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-19 23:46:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-19 23:46:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-07-19 23:46:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-07-19 23:46:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-07-19 23:46:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-07-19 23:46:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-07-19 23:46:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-07-19 23:46:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-19 23:46:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-19 23:46:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-19 23:46:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-19 23:46:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-07-19 23:46:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-07-19 23:46:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-07-19 23:46:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-07-19 23:46:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-19 23:46:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-19 23:46:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-07-19 23:46:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-07-19 23:46:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-07-19 23:46:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-07-19 23:46:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-07-19 23:46:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-07-19 23:46:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-07-19 23:46:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-19 23:46:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 23:46:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:46:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:46:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 23:46:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-07-19 23:46:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-07-19 23:46:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-07-19 23:46:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-07-19 23:46:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-07-19 23:46:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-07-19 23:46:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-07-19 23:46:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-07-19 23:46:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-19 23:46:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-19 23:46:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-19 23:46:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-19 23:46:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-07-19 23:46:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-07-19 23:46:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-19 23:46:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-19 23:46:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-19 23:46:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-19 23:46:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-07-19 23:46:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-07-19 23:46:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-07-19 23:46:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-07-19 23:46:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-19 23:46:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-19 23:46:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-19 23:46:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-19 23:46:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 23:46:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-07-19 23:46:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-07-19 23:46:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-07-19 23:46:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-07-19 23:46:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-07-19 23:46:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-07-19 23:46:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-19 23:46:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-19 23:46:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:46:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:46:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-19 23:46:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-19 23:46:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-07-19 23:46:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-19 23:46:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-19 23:46:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:46:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 23:46:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:46:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:46:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:46:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-19 23:46:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-19 23:46:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 23:46:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 23:46:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-07-19 23:46:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-07-19 23:46:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-07-19 23:46:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-07-19 23:46:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-07-19 23:46:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-07-19 23:46:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-07-19 23:46:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-07-19 23:46:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-19 23:46:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-19 23:46:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-19 23:46:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-19 23:46:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:46:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:46:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:46:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:46:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-07-19 23:46:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-07-19 23:46:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-07-19 23:46:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-07-19 23:46:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-07-19 23:46:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-07-19 23:46:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-19 23:46:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-19 23:46:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:46:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:46:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-07-19 23:46:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-07-19 23:46:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-07-19 23:46:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-07-19 23:46:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:46:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:46:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-07-19 23:46:40,325 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-07-19 23:46:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-07-19 23:46:40,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-07-19 23:46:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-07-19 23:46:40,328 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-07-19 23:46:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:46:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-07-19 23:46:40,329 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-07-19 23:46:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:46:40,329 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:46:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-07-19 23:46:40,329 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-07-19 23:46:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:46:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-07-19 23:46:40,330 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-07-19 23:46:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-19 23:46:40,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-19 23:46:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-07-19 23:46:40,331 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-07-19 23:46:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-07-19 23:46:40,331 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-07-19 23:46:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-07-19 23:46:40,331 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-07-19 23:46:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-19 23:46:40,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-19 23:46:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-19 23:46:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-07-19 23:46:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-07-19 23:46:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:46:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-19 23:46:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-19 23:46:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-07-19 23:46:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-07-19 23:46:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-19 23:46:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-19 23:46:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-07-19 23:46:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-07-19 23:46:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:46:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:46:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-07-19 23:46:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-07-19 23:46:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-07-19 23:46:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-07-19 23:46:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-19 23:46:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-19 23:46:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-07-19 23:46:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-07-19 23:46:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-07-19 23:46:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-07-19 23:46:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-07-19 23:46:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-07-19 23:46:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-07-19 23:46:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-07-19 23:46:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-07-19 23:46:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-07-19 23:46:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-19 23:46:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-19 23:46:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-19 23:46:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-19 23:46:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:46:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:46:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-07-19 23:46:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-07-19 23:46:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-07-19 23:46:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-07-19 23:46:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-07-19 23:46:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-07-19 23:46:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:46:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:46:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-19 23:46:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-19 23:46:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-07-19 23:46:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-07-19 23:46:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-07-19 23:46:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-07-19 23:46:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-07-19 23:46:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-07-19 23:46:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-19 23:46:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-19 23:46:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-19 23:46:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-19 23:46:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-07-19 23:46:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-07-19 23:46:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-19 23:46:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-19 23:46:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-07-19 23:46:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-07-19 23:46:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-07-19 23:46:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-07-19 23:46:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-07-19 23:46:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-07-19 23:46:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 23:46:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 23:46:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-07-19 23:46:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-07-19 23:46:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-19 23:46:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-19 23:46:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-07-19 23:46:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-07-19 23:46:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-07-19 23:46:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-07-19 23:46:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-19 23:46:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-19 23:46:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-07-19 23:46:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-07-19 23:46:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-07-19 23:46:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-07-19 23:46:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-07-19 23:46:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-07-19 23:46:41,268 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:46:41,275 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:46:41,584 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:47:01,983 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:47:02,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:47:02,006 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 23:47:02,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:47:02 BoogieIcfgContainer [2022-07-19 23:47:02,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:47:02,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:47:02,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:47:02,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:47:02,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:46:35" (1/3) ... [2022-07-19 23:47:02,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25096ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:47:02, skipping insertion in model container [2022-07-19 23:47:02,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:39" (2/3) ... [2022-07-19 23:47:02,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25096ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:47:02, skipping insertion in model container [2022-07-19 23:47:02,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:47:02" (3/3) ... [2022-07-19 23:47:02,020 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-07-19 23:47:02,032 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:47:02,032 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:47:02,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:47:02,132 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@b4d6fe0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5c64ef7 [2022-07-19 23:47:02,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:47:02,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) [2022-07-19 23:47:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-19 23:47:02,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:02,183 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:02,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:02,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:02,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2586623, now seen corresponding path program 1 times [2022-07-19 23:47:02,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:02,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781418363] [2022-07-19 23:47:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:02,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:02,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:02,220 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) [2022-07-19 23:47:02,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 23:47:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:04,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:47:04,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-19 23:47:04,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:47:04,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:47:04,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781418363] [2022-07-19 23:47:04,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781418363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:04,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:04,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:47:04,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889419028] [2022-07-19 23:47:04,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:04,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:47:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:47:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:47:04,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:04,434 INFO L87 Difference]: Start difference. First operand has 2739 states, 1884 states have (on average 1.3540339702760085) internal successors, (2551), 1986 states have internal predecessors, (2551), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 23:47:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:04,901 INFO L93 Difference]: Finished difference Result 8008 states and 11636 transitions. [2022-07-19 23:47:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:47:04,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2022-07-19 23:47:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:04,937 INFO L225 Difference]: With dead ends: 8008 [2022-07-19 23:47:04,937 INFO L226 Difference]: Without dead ends: 5221 [2022-07-19 23:47:04,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:04,956 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 3688 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 8333 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:04,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3688 Valid, 8333 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:47:04,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-07-19 23:47:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5216. [2022-07-19 23:47:05,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 3608 states have (on average 1.3450665188470066) internal successors, (4853), 3783 states have internal predecessors, (4853), 1299 states have call successors, (1299), 309 states have call predecessors, (1299), 308 states have return successors, (1298), 1269 states have call predecessors, (1298), 1298 states have call successors, (1298) [2022-07-19 23:47:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7450 transitions. [2022-07-19 23:47:05,225 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7450 transitions. Word has length 213 [2022-07-19 23:47:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:05,229 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7450 transitions. [2022-07-19 23:47:05,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 23:47:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7450 transitions. [2022-07-19 23:47:05,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-19 23:47:05,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:05,238 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:05,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 23:47:05,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:47:05,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:05,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:05,460 INFO L85 PathProgramCache]: Analyzing trace with hash 517155252, now seen corresponding path program 1 times [2022-07-19 23:47:05,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:05,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346544800] [2022-07-19 23:47:05,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:05,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:05,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:05,476 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) [2022-07-19 23:47:05,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 23:47:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:07,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:47:07,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-19 23:47:07,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:47:07,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:47:07,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346544800] [2022-07-19 23:47:07,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346544800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:07,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:07,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:47:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019342000] [2022-07-19 23:47:07,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:07,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:47:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:47:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:47:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:07,571 INFO L87 Difference]: Start difference. First operand 5216 states and 7450 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 23:47:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:08,243 INFO L93 Difference]: Finished difference Result 14791 states and 21009 transitions. [2022-07-19 23:47:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:47:08,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2022-07-19 23:47:08,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:08,301 INFO L225 Difference]: With dead ends: 14791 [2022-07-19 23:47:08,301 INFO L226 Difference]: Without dead ends: 9634 [2022-07-19 23:47:08,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:08,325 INFO L413 NwaCegarLoop]: 4605 mSDtfsCounter, 3287 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 8353 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:08,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3287 Valid, 8353 Invalid, 56 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 23:47:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9634 states. [2022-07-19 23:47:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9634 to 9627. [2022-07-19 23:47:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9627 states, 6657 states have (on average 1.3406940063091484) internal successors, (8925), 6996 states have internal predecessors, (8925), 2357 states have call successors, (2357), 613 states have call predecessors, (2357), 612 states have return successors, (2356), 2301 states have call predecessors, (2356), 2356 states have call successors, (2356) [2022-07-19 23:47:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 13638 transitions. [2022-07-19 23:47:08,654 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 13638 transitions. Word has length 214 [2022-07-19 23:47:08,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:08,655 INFO L495 AbstractCegarLoop]: Abstraction has 9627 states and 13638 transitions. [2022-07-19 23:47:08,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 23:47:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 13638 transitions. [2022-07-19 23:47:08,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-19 23:47:08,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:08,660 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:08,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 23:47:08,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:47:08,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:08,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:08,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1347570925, now seen corresponding path program 1 times [2022-07-19 23:47:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:08,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501007354] [2022-07-19 23:47:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:08,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:08,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:08,908 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) [2022-07-19 23:47:08,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 23:47:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:10,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:47:11,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:11,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-07-19 23:47:11,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:47:11,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:47:11,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501007354] [2022-07-19 23:47:11,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501007354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:11,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:11,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:47:11,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590634365] [2022-07-19 23:47:11,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:11,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:47:11,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:47:11,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:47:11,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:11,083 INFO L87 Difference]: Start difference. First operand 9627 states and 13638 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, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 23:47:11,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:11,856 INFO L93 Difference]: Finished difference Result 26193 states and 36968 transitions. [2022-07-19 23:47:11,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:47:11,856 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, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 220 [2022-07-19 23:47:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:11,945 INFO L225 Difference]: With dead ends: 26193 [2022-07-19 23:47:11,946 INFO L226 Difference]: Without dead ends: 16625 [2022-07-19 23:47:11,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:11,980 INFO L413 NwaCegarLoop]: 6635 mSDtfsCounter, 3670 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 10383 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:11,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 10383 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 23:47:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16625 states. [2022-07-19 23:47:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16625 to 16622. [2022-07-19 23:47:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16622 states, 11543 states have (on average 1.3377804730139478) internal successors, (15442), 12127 states have internal predecessors, (15442), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-07-19 23:47:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 23411 transitions. [2022-07-19 23:47:12,436 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 23411 transitions. Word has length 220 [2022-07-19 23:47:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:12,438 INFO L495 AbstractCegarLoop]: Abstraction has 16622 states and 23411 transitions. [2022-07-19 23:47:12,438 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, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 23:47:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 23411 transitions. [2022-07-19 23:47:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-07-19 23:47:12,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:12,460 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:12,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:47:12,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:47:12,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:12,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1196821462, now seen corresponding path program 1 times [2022-07-19 23:47:12,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:12,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628048532] [2022-07-19 23:47:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:12,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:12,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:12,689 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) [2022-07-19 23:47:12,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 23:47:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:14,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:47:14,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4908 backedges. 2468 proven. 0 refuted. 0 times theorem prover too weak. 2440 trivial. 0 not checked. [2022-07-19 23:47:14,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:47:14,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:47:14,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628048532] [2022-07-19 23:47:14,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628048532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:14,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:14,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:47:14,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091650784] [2022-07-19 23:47:14,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:14,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:47:14,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:47:14,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:47:14,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:47:14,811 INFO L87 Difference]: Start difference. First operand 16622 states and 23411 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-19 23:47:16,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:47:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:17,478 INFO L93 Difference]: Finished difference Result 33209 states and 46764 transitions. [2022-07-19 23:47:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:47:17,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 370 [2022-07-19 23:47:17,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:17,567 INFO L225 Difference]: With dead ends: 33209 [2022-07-19 23:47:17,567 INFO L226 Difference]: Without dead ends: 16615 [2022-07-19 23:47:17,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:47:17,633 INFO L413 NwaCegarLoop]: 3886 mSDtfsCounter, 6 mSDsluCounter, 11653 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15539 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:17,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15539 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 23:47:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16615 states. [2022-07-19 23:47:18,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16615 to 16587. [2022-07-19 23:47:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16587 states, 11508 states have (on average 1.3374174487313173) internal successors, (15391), 12092 states have internal predecessors, (15391), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-07-19 23:47:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16587 states to 16587 states and 23360 transitions. [2022-07-19 23:47:18,278 INFO L78 Accepts]: Start accepts. Automaton has 16587 states and 23360 transitions. Word has length 370 [2022-07-19 23:47:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:18,279 INFO L495 AbstractCegarLoop]: Abstraction has 16587 states and 23360 transitions. [2022-07-19 23:47:18,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-19 23:47:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 16587 states and 23360 transitions. [2022-07-19 23:47:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-19 23:47:18,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:18,297 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:18,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-19 23:47:18,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:47:18,512 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 41778221, now seen corresponding path program 1 times [2022-07-19 23:47:18,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:18,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664668953] [2022-07-19 23:47:18,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:18,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:18,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:18,524 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) [2022-07-19 23:47:18,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 23:47:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:20,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 23:47:20,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-07-19 23:47:22,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:47:22,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:47:22,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664668953] [2022-07-19 23:47:22,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664668953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:22,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:22,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:47:22,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886393834] [2022-07-19 23:47:22,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:22,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:47:22,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:47:22,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:47:22,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:22,480 INFO L87 Difference]: Start difference. First operand 16587 states and 23360 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-07-19 23:47:22,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:22,813 INFO L93 Difference]: Finished difference Result 27677 states and 38870 transitions. [2022-07-19 23:47:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:47:22,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 371 [2022-07-19 23:47:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:22,942 INFO L225 Difference]: With dead ends: 27677 [2022-07-19 23:47:22,943 INFO L226 Difference]: Without dead ends: 27674 [2022-07-19 23:47:22,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:47:22,965 INFO L413 NwaCegarLoop]: 4634 mSDtfsCounter, 2951 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 7903 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:22,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 7903 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:47:22,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27674 states. [2022-07-19 23:47:23,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27674 to 27192. [2022-07-19 23:47:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27192 states, 19243 states have (on average 1.3444369381073638) internal successors, (25871), 20094 states have internal predecessors, (25871), 5996 states have call successors, (5996), 1964 states have call predecessors, (5996), 1952 states have return successors, (6192), 5814 states have call predecessors, (6192), 5995 states have call successors, (6192) [2022-07-19 23:47:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 38059 transitions. [2022-07-19 23:47:23,885 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 38059 transitions. Word has length 371 [2022-07-19 23:47:23,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:23,889 INFO L495 AbstractCegarLoop]: Abstraction has 27192 states and 38059 transitions. [2022-07-19 23:47:23,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-07-19 23:47:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 38059 transitions. [2022-07-19 23:47:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-19 23:47:23,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:23,947 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:24,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:47:24,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:47:24,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:24,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:24,176 INFO L85 PathProgramCache]: Analyzing trace with hash -810105328, now seen corresponding path program 1 times [2022-07-19 23:47:24,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:24,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644493559] [2022-07-19 23:47:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:24,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:24,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:24,180 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) [2022-07-19 23:47:24,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 23:47:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:26,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 23:47:26,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-07-19 23:47:26,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:47:26,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:47:26,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644493559] [2022-07-19 23:47:26,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644493559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:26,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:26,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:47:26,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527096605] [2022-07-19 23:47:26,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:26,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:47:26,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:47:26,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:47:26,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:47:26,388 INFO L87 Difference]: Start difference. First operand 27192 states and 38059 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-19 23:47:28,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:47:30,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:30,997 INFO L93 Difference]: Finished difference Result 81456 states and 113995 transitions. [2022-07-19 23:47:30,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:47:30,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 397 [2022-07-19 23:47:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:31,234 INFO L225 Difference]: With dead ends: 81456 [2022-07-19 23:47:31,234 INFO L226 Difference]: Without dead ends: 54332 [2022-07-19 23:47:31,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:47:31,321 INFO L413 NwaCegarLoop]: 7369 mSDtfsCounter, 4408 mSDsluCounter, 10513 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 365 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 17882 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:31,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 17882 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [365 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-19 23:47:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54332 states. [2022-07-19 23:47:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54332 to 54305. [2022-07-19 23:47:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54305 states, 38441 states have (on average 1.34439790848313) internal successors, (51680), 40151 states have internal predecessors, (51680), 11960 states have call successors, (11960), 3926 states have call predecessors, (11960), 3903 states have return successors, (12353), 11589 states have call predecessors, (12353), 11959 states have call successors, (12353) [2022-07-19 23:47:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54305 states to 54305 states and 75993 transitions. [2022-07-19 23:47:33,136 INFO L78 Accepts]: Start accepts. Automaton has 54305 states and 75993 transitions. Word has length 397 [2022-07-19 23:47:33,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:33,137 INFO L495 AbstractCegarLoop]: Abstraction has 54305 states and 75993 transitions. [2022-07-19 23:47:33,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-19 23:47:33,137 INFO L276 IsEmpty]: Start isEmpty. Operand 54305 states and 75993 transitions. [2022-07-19 23:47:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-07-19 23:47:33,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:33,191 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:33,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 23:47:33,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:47:33,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -955879295, now seen corresponding path program 1 times [2022-07-19 23:47:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:47:33,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605780255] [2022-07-19 23:47:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:33,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:47:33,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:47:33,415 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) [2022-07-19 23:47:33,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 23:47:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:35,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-19 23:47:35,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:47:39,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2022-07-19 23:47:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 1781 proven. 30 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2022-07-19 23:47:40,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:47:41,542 INFO L356 Elim1Store]: treesize reduction 482, result has 12.8 percent of original size [2022-07-19 23:47:41,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 82 treesize of output 96 [2022-07-19 23:48:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-07-19 23:48:09,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:48:09,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605780255] [2022-07-19 23:48:09,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605780255] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:48:09,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:48:09,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2022-07-19 23:48:09,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386802613] [2022-07-19 23:48:09,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 23:48:10,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-19 23:48:10,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:48:10,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-19 23:48:10,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2022-07-19 23:48:10,007 INFO L87 Difference]: Start difference. First operand 54305 states and 75993 transitions. Second operand has 24 states, 24 states have (on average 11.208333333333334) internal successors, (269), 20 states have internal predecessors, (269), 13 states have call successors, (115), 8 states have call predecessors, (115), 8 states have return successors, (110), 13 states have call predecessors, (110), 11 states have call successors, (110) [2022-07-19 23:48:12,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:48:14,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:48:16,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:48:18,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:48:20,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:48:22,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:08,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:11,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:15,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:18,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:25,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:27,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:29,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:30,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:37,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:49:39,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:13,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:16,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:28,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:30,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:32,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:35,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:38,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:40,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:41,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:44,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:47,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:48,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:50:50,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []